.envrc

@@ -1,4 +1,4 @@
-layout uv
+layout poetry
 export LINE_PROFILE=1
 export MAIL_PASSWORD="ewacyay5seu2qske"
 export MAIL_PORT=587

.gitattributes

@@ -1 +0,0 @@
-*.py diff=python

.gitignore

@@ -2,7 +2,6 @@
 *.pyc
 *.swp
 tags
-.venv/
 venv/
 Session.vim
 *.flac
@@ -14,4 +13,3 @@ StudioPlaylist.png
 tmp/
 .coverage
 profile_output*
-kae.py

.python-version

@@ -1 +1 @@
-3.13
+musicmuster

InterceptEscapeWhenEditingTableCell.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+
+from PyQt6.QtCore import Qt, QEvent, QObject
+from PyQt6.QtWidgets import (
+    QAbstractItemView,
+    QApplication,
+    QMainWindow,
+    QMessageBox,
+    QPlainTextEdit,
+    QStyledItemDelegate,
+    QTableWidget,
+    QTableWidgetItem,
+)
+
+from PyQt6.QtGui import QKeyEvent
+
+from typing import cast
+
+
+class EscapeDelegate(QStyledItemDelegate):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+    def createEditor(self, parent, option, index):
+        return QPlainTextEdit(parent)
+
+    def eventFilter(self, editor: QObject, event: QEvent):
+        """By default, QPlainTextEdit doesn't handle enter or return"""
+
+        print("EscapeDelegate event handler")
+        if event.type() == QEvent.Type.KeyPress:
+            key_event = cast(QKeyEvent, event)
+            if key_event.key() == Qt.Key.Key_Return:
+                if key_event.modifiers() == (Qt.KeyboardModifier.ControlModifier):
+                    print("save data")
+                    self.commitData.emit(editor)
+                    self.closeEditor.emit(editor)
+                    return True
+            elif key_event.key() == Qt.Key.Key_Escape:
+                discard_edits = QMessageBox.question(
+                    self.parent(), "Abandon edit", "Discard changes?"
+                )
+                if discard_edits == QMessageBox.StandardButton.Yes:
+                    print("abandon edit")
+                    self.closeEditor.emit(editor)
+                    return True
+        return False
+
+
+class MyTableWidget(QTableWidget):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setItemDelegate(EscapeDelegate(self))
+        # self.setEditTriggers(QAbstractItemView.EditTrigger.DoubleClicked)
+
+
+class MainWindow(QMainWindow):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.table_widget = MyTableWidget(self)
+        self.table_widget.setRowCount(2)
+        self.table_widget.setColumnCount(2)
+        for row in range(2):
+            for col in range(2):
+                item = QTableWidgetItem()
+                item.setText(f"Row {row}, Col {col}")
+                self.table_widget.setItem(row, col, item)
+        self.setCentralWidget(self.table_widget)
+
+        self.table_widget.resizeColumnsToContents()
+        self.table_widget.resizeRowsToContents()
+
+
+if __name__ == "__main__":
+    app = QApplication([])
+    window = MainWindow()
+    window.show()
+    app.exec()

InterceptEscapeWhenEditingTableCellInView.py

@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+
+from PyQt6.QtCore import Qt, QEvent, QObject, QVariant, QAbstractTableModel
+from PyQt6.QtWidgets import (
+    QApplication,
+    QMainWindow,
+    QMessageBox,
+    QPlainTextEdit,
+    QStyledItemDelegate,
+    QTableView,
+)
+
+from PyQt6.QtGui import QKeyEvent
+
+from typing import cast
+
+
+class EscapeDelegate(QStyledItemDelegate):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+    def createEditor(self, parent, option, index):
+        return QPlainTextEdit(parent)
+
+    def eventFilter(self, editor: QObject, event: QEvent):
+        """By default, QPlainTextEdit doesn't handle enter or return"""
+
+        if event.type() == QEvent.Type.KeyPress:
+            key_event = cast(QKeyEvent, event)
+            print(key_event.key())
+            if key_event.key() == Qt.Key.Key_Return:
+                if key_event.modifiers() == (Qt.KeyboardModifier.ControlModifier):
+                    print("save data")
+                    self.commitData.emit(editor)
+                    self.closeEditor.emit(editor)
+                    return True
+            elif key_event.key() == Qt.Key.Key_Escape:
+                discard_edits = QMessageBox.question(
+                    self.parent(), "Abandon edit", "Discard changes?"
+                )
+                if discard_edits == QMessageBox.StandardButton.Yes:
+                    print("abandon edit")
+                    self.closeEditor.emit(editor)
+                    return True
+        return False
+
+
+class MyTableWidget(QTableView):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setItemDelegate(EscapeDelegate(self))
+        self.setModel(MyModel())
+
+
+class MyModel(QAbstractTableModel):
+    def columnCount(self, index):
+        return 2
+
+    def rowCount(self, index):
+        return 2
+
+    def data(self, index, role):
+        if not index.isValid() or not (0 <= index.row() < 2):
+            return QVariant()
+
+        row = index.row()
+        column = index.column()
+        if role == Qt.ItemDataRole.DisplayRole:
+            return QVariant(f"Row {row}, Col {column}")
+        return QVariant()
+
+    def flags(self, index):
+        return (
+            Qt.ItemFlag.ItemIsEnabled
+            | Qt.ItemFlag.ItemIsSelectable
+            | Qt.ItemFlag.ItemIsEditable
+        )
+
+
+class MainWindow(QMainWindow):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.table_widget = MyTableWidget(self)
+        self.setCentralWidget(self.table_widget)
+
+        self.table_widget.resizeColumnsToContents()
+        self.table_widget.resizeRowsToContents()
+
+
+if __name__ == "__main__":
+    app = QApplication([])
+    window = MainWindow()
+    window.show()
+    app.exec()

app/audacity_controller.py

@@ -69,8 +69,7 @@ class AudacityController:
         select_status = self._send_command("SelectAll")
         log.debug(f"{select_status=}")
 
-        # Escape any double quotes in filename
+        export_cmd = f'Export2: Filename="{self.path}" NumChannels=2'
-        export_cmd = f'Export2: Filename="{self.path.replace('"', '\\"')}" NumChannels=2'
         export_status = self._send_command(export_cmd)
         log.debug(f"{export_status=}")
         self.path = ""

app/classes.py

@@ -5,7 +5,7 @@ from dataclasses import dataclass
 from enum import auto, Enum
 import functools
 import threading
-from typing import NamedTuple
+from typing import NamedTuple, Optional
 
 # Third party imports
 
@@ -97,7 +97,10 @@ class MusicMusterSignals(QObject):
     """
     Class for all MusicMuster signals. See:
      - https://zetcode.com/gui/pyqt5/eventssignals/
-     - https://stackoverflow.com/questions/62654525/emit-a-signal-from-another-class-to-main-class
+     - https://stackoverflow.com/questions/62654525/
+        emit-a-signal-from-another-class-to-main-class
+    and Singleton class at
+    https://refactoring.guru/design-patterns/singleton/python/example#example-0
     """
 
     begin_reset_model_signal = pyqtSignal(int)

app/config.py

@@ -123,23 +123,23 @@ class Config(object):
     ROWS_FROM_ZERO = True
     SCROLL_TOP_MARGIN = 3
     SECTION_ENDINGS = ("-", "+-", "-+")
-    SECTION_HEADER = "[Section header]"
     SECTION_STARTS = ("+", "+-", "-+")
     SONGFACTS_ON_NEXT = False
     START_GAP_WARNING_THRESHOLD = 300
     SUBTOTAL_ON_ROW_ZERO = "[No subtotal on first row]"
+    TEXT_NO_TRACK_NO_NOTE = "[Section header]"
     TOD_TIME_FORMAT = "%H:%M:%S"
     TRACK_TIME_FORMAT = "%H:%M:%S"
     VLC_MAIN_PLAYER_NAME = "MusicMuster Main Player"
     VLC_PREVIEW_PLAYER_NAME = "MusicMuster Preview Player"
-    VLC_VOLUME_DEFAULT = 100
+    VLC_VOLUME_DEFAULT = 75
-    VLC_VOLUME_DROP3db = 70
+    VLC_VOLUME_DROP3db = 65
     WARNING_MS_BEFORE_FADE = 5500
     WARNING_MS_BEFORE_SILENCE = 5500
     WEB_ZOOM_FACTOR = 1.2
     WIKIPEDIA_ON_NEXT = False
 
     # These rely on earlier definitions
-    HIDE_PLAYED_MODE = HIDE_PLAYED_MODE_TRACKS
+    HIDE_PLAYED_MODE = HIDE_PLAYED_MODE_SECTIONS
     IMPORT_DESTINATION = os.path.join(ROOT, "Singles")
     REPLACE_FILES_DEFAULT_DESTINATION = os.path.dirname(REPLACE_FILES_DEFAULT_SOURCE)

app/dbtables.py

@@ -53,7 +53,7 @@ class NoteColoursTable(Model):
     __tablename__ = "notecolours"
 
     id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
-    substring: Mapped[str] = mapped_column(String(256), index=True, unique=True)
+    substring: Mapped[str] = mapped_column(String(256), index=True)
     colour: Mapped[str] = mapped_column(String(21), index=False)
     enabled: Mapped[bool] = mapped_column(default=True, index=True)
     foreground: Mapped[Optional[str]] = mapped_column(String(21), index=False)

app/file_importer.py

@@ -35,7 +35,6 @@ from classes import (
 )
 from config import Config
 from helpers import (
-    audio_file_extension,
     file_is_unreadable,
     get_tags,
     show_OK,
@@ -105,14 +104,16 @@ class FileImporter:
     # variable or an instance variable are effectively the same thing.
     workers: dict[str, DoTrackImport] = {}
 
-    def __init__(self, base_model: PlaylistModel, row_number: int) -> None:
+    def __init__(
+        self, base_model: PlaylistModel, row_number: Optional[int] = None
+    ) -> None:
         """
         Initialise the FileImporter singleton instance.
         """
 
-        log.debug(f"FileImporter.__init__({base_model=}, {row_number=})")
-
         # Create ModelData
+        if not row_number:
+            row_number = base_model.rowCount()
         self.model_data = ThreadData(base_model=base_model, row_number=row_number)
 
         # Data structure to track files to import
@@ -201,9 +202,8 @@ class FileImporter:
                     self.sort_track_match_data(tfd)
                 selection = self.get_user_choices(tfd)
                 if self.process_selection(tfd, selection):
-                    if self.extension_check(tfd):
+                    if self.validate_file_data(tfd):
-                        if self.validate_file_data(tfd):
+                        tfd.import_this_file = True
-                            tfd.import_this_file = True
 
         return tfd
 
@@ -237,26 +237,6 @@ class FileImporter:
 
         return True
 
-    def extension_check(self, tfd: TrackFileData) -> bool:
-        """
-        If we are replacing an existing file, check that the correct file
-        extension of the replacement file matches the existing file
-        extension and return True if it does (or if there is no exsting
-        file), else False.
-        """
-
-        if not tfd.file_path_to_remove:
-            return True
-
-        if tfd.file_path_to_remove.endswith(audio_file_extension(tfd.source_path)):
-            return True
-
-        tfd.error = (
-            f"Existing file ({tfd.file_path_to_remove}) has a different "
-            f"extension to replacement file ({tfd.source_path})"
-        )
-        return False
-
     def find_similar(self, tfd: TrackFileData) -> None:
         """
         - Search title in existing tracks
@@ -465,8 +445,7 @@ class FileImporter:
         if tfd.track_id == 0 and tfd.destination_path != tfd.file_path_to_remove:
             while os.path.exists(tfd.destination_path):
                 msg = (
-                    "New import requested but default destination path"
+                    f"New import requested but default destination path ({tfd.destination_path})"
-                    f" ({tfd.destination_path})"
                     " already exists. Click OK and choose where to save this track"
                 )
                 show_OK(title="Desintation path exists", msg=msg, parent=None)
@@ -648,8 +627,7 @@ class DoTrackImport(QThread):
             f"Importing {os.path.basename(self.import_file_path)}", 5000
         )
 
-        # Get audio metadata in this thread rather than calling
+        # Get audio metadata in this thread rather than calling function to save interactive time
-        # function to save interactive time
         self.audio_metadata = helpers.get_audio_metadata(self.import_file_path)
 
         # Remove old file if so requested

app/helpers.py

@@ -13,7 +13,6 @@ import tempfile
 from PyQt6.QtWidgets import QInputDialog, QMainWindow, QMessageBox, QWidget
 
 # Third party imports
-import filetype
 from mutagen.flac import FLAC  # type: ignore
 from mutagen.mp3 import MP3  # type: ignore
 from pydub import AudioSegment, effects
@@ -51,14 +50,6 @@ def ask_yes_no(
     return button == QMessageBox.StandardButton.Yes
 
 
-def audio_file_extension(fpath: str) -> str | None:
-    """
-    Return the correct extension for this type of file.
-    """
-
-    return filetype.guess(fpath).extension
-
-
 def fade_point(
     audio_segment: AudioSegment,
     fade_threshold: float = 0.0,
@@ -81,7 +72,7 @@ def fade_point(
         fade_threshold = max_vol
 
     while (
-        audio_segment[trim_ms: trim_ms + chunk_size].dBFS < fade_threshold
+        audio_segment[trim_ms : trim_ms + chunk_size].dBFS < fade_threshold
         and trim_ms > 0
     ):  # noqa W503
         trim_ms -= chunk_size
@@ -103,9 +94,6 @@ def file_is_unreadable(path: Optional[str]) -> bool:
 
 
 def get_audio_segment(path: str) -> Optional[AudioSegment]:
-    if not path.endswith(audio_file_extension(path)):
-        return None
-
     try:
         if path.endswith(".mp3"):
             return AudioSegment.from_mp3(path)

app/jittermonitor.py

@@ -1,56 +0,0 @@
-from PyQt6.QtCore import QObject, QTimer, QElapsedTimer
-import logging
-import time
-
-from config import Config
-
-class EventLoopJitterMonitor(QObject):
-    def __init__(
-        self,
-        parent=None,
-        interval_ms: int = 20,
-        jitter_threshold_ms: int = 100,
-        log_cooldown_s: float = 1.0,
-    ):
-        super().__init__(parent)
-        self._interval = interval_ms
-        self._jitter_threshold = jitter_threshold_ms
-        self._log_cooldown_s = log_cooldown_s
-
-        self._timer = QTimer(self)
-        self._timer.setInterval(self._interval)
-        self._timer.timeout.connect(self._on_timeout)
-
-        self._elapsed = QElapsedTimer()
-        self._elapsed.start()
-        self._last = self._elapsed.elapsed()
-
-        # child logger: e.g. "musicmuster.jitter"
-        self._log = logging.getLogger(f"{Config.LOG_NAME}.jitter")
-        self._last_log_time = 0.0
-
-    def start(self) -> None:
-        self._timer.start()
-
-    def _on_timeout(self) -> None:
-        now_ms = self._elapsed.elapsed()
-        delta = now_ms - self._last
-        self._last = now_ms
-
-        if delta > (self._interval + self._jitter_threshold):
-            self._log_jitter(now_ms, delta)
-
-    def _log_jitter(self, now_ms: int, gap_ms: int) -> None:
-        now = time.monotonic()
-
-        # simple rate limit: only one log every log_cooldown_s
-        if now - self._last_log_time < self._log_cooldown_s:
-            return
-        self._last_log_time = now
-
-        self._log.warning(
-            "Event loop gap detected: t=%d ms, gap=%d ms (interval=%d ms)",
-            now_ms,
-            gap_ms,
-            self._interval,
-        )

app/log.py

@@ -1,24 +1,21 @@
 #!/usr/bin/env python3
 # Standard library imports
 from collections import defaultdict
-from functools import wraps
 import logging
 import logging.config
 import logging.handlers
 import os
 import sys
-import traceback
+from traceback import print_exception
 import yaml
 
 # PyQt imports
-from PyQt6.QtWidgets import QApplication, QMessageBox
 
 # Third party imports
 import stackprinter  # type: ignore
 
 # App imports
 from config import Config
-from classes import ApplicationError
 
 
 class FunctionFilter(logging.Filter):
@@ -79,60 +76,26 @@ with open("app/logging.yaml", "r") as f:
 log = logging.getLogger(Config.LOG_NAME)
 
 
-def handle_exception(exc_type, exc_value, exc_traceback):
+def log_uncaught_exceptions(type_, value, traceback):
-    error = str(exc_value)
+    from helpers import send_mail
-    if issubclass(exc_type, ApplicationError):
-        log.error(error)
-    else:
-        # Handle unexpected errors (log and display)
-        error_msg = "".join(traceback.format_exception(exc_type, exc_value, exc_traceback))
 
-        print(stackprinter.format(exc_value, suppressed_paths=['/.venv'], style='darkbg'))
+    print("\033[1;31;47m")
-
+    print_exception(type_, value, traceback)
-        msg = stackprinter.format(exc_value)
+    print("\033[1;37;40m")
-        log.error(msg)
+    print(
-        log.error(error_msg)
+        stackprinter.format(
-        print("Critical error:", error_msg)  # Consider logging instead of print
+            value, suppressed_paths=["/pypoetry/virtualenvs/"], style="darkbg"
-
+        )
-        if os.environ["MM_ENV"] == "PRODUCTION":
+    )
-            from helpers import send_mail
+    if os.environ["MM_ENV"] == "PRODUCTION":
-
+        msg = stackprinter.format(value)
-            send_mail(
+        send_mail(
-                Config.ERRORS_TO,
+            Config.ERRORS_TO,
-                Config.ERRORS_FROM,
+            Config.ERRORS_FROM,
-                "Exception (log_uncaught_exceptions) from musicmuster",
+            "Exception (log_uncaught_exceptions) from musicmuster",
-                msg,
+            msg,
-            )
+        )
-    if QApplication.instance() is not None:
+        log.debug(msg)
-        fname = os.path.split(exc_traceback.tb_frame.f_code.co_filename)[1]
-        msg = f"ApplicationError: {error}\nat {fname}:{exc_traceback.tb_lineno}"
-        QMessageBox.critical(None, "Application Error", msg)
 
 
-def truncate_large(obj, limit=5):
+sys.excepthook = log_uncaught_exceptions
-    """Helper to truncate large lists or other iterables."""
-    if isinstance(obj, (list, tuple, set)):
-        if len(obj) > limit:
-            return f"{type(obj).__name__}(len={len(obj)}, items={list(obj)[:limit]}...)"
-
-    return repr(obj)
-
-
-def log_call(func):
-    @wraps(func)
-    def wrapper(*args, **kwargs):
-        args_repr = [truncate_large(a) for a in args]
-        kwargs_repr = [f"{k}={truncate_large(v)}" for k, v in kwargs.items()]
-        params_repr = ", ".join(args_repr + kwargs_repr)
-        log.debug(f"call {func.__name__}({params_repr})")
-        try:
-            result = func(*args, **kwargs)
-            log.debug(f"return {func.__name__}: {truncate_large(result)}")
-            return result
-        except Exception as e:
-            log.debug(f"exception in {func.__name__}: {e}")
-            raise
-    return wrapper
-
-
-sys.excepthook = handle_exception

app/logging.yaml

@@ -23,8 +23,8 @@ filters:
       #    - function-name-1
       #    - function-name-2
       musicmuster:
+        - update_clocks
         - play_next
-      jittermonitor: []
 
 handlers:
   stderr:

app/models.py

@@ -10,8 +10,6 @@ import sys
 # PyQt imports
 
 # Third party imports
-from dogpile.cache import make_region
-from dogpile.cache.api import NO_VALUE
 from sqlalchemy import (
     bindparam,
     delete,
@@ -22,7 +20,7 @@ from sqlalchemy import (
 )
 from sqlalchemy.exc import IntegrityError, ProgrammingError
 from sqlalchemy.orm.exc import NoResultFound
-from sqlalchemy.orm import joinedload, selectinload
+from sqlalchemy.orm import joinedload
 from sqlalchemy.orm.session import Session
 from sqlalchemy.engine.row import RowMapping
 
@@ -42,12 +40,6 @@ if "unittest" in sys.modules and "sqlite" not in DATABASE_URL:
     raise ValueError("Unit tests running on non-Sqlite database")
 db = DatabaseManager.get_instance(DATABASE_URL, engine_options=Config.ENGINE_OPTIONS).db
 
-# Configure the cache region
-cache_region = make_region().configure(
-    'dogpile.cache.memory',  # Use in-memory caching for now (switch to Redis if needed)
-    expiration_time=600  # Cache expires after 10 minutes
-)
-
 
 def run_sql(session: Session, sql: str) -> Sequence[RowMapping]:
     """
@@ -62,7 +54,6 @@ def run_sql(session: Session, sql: str) -> Sequence[RowMapping]:
 
 # Database classes
 class NoteColours(dbtables.NoteColoursTable):
-
     def __init__(
         self,
         session: Session,
@@ -89,28 +80,13 @@ class NoteColours(dbtables.NoteColoursTable):
         Return all records
         """
 
-        cache_key = "note_colours_all"
+        result = session.scalars(select(cls)).all()
-        cached_result = cache_region.get(cache_key)
-
-        if cached_result is not NO_VALUE:
-            return cached_result
-
-        # Query the database
-        result = session.scalars(
-            select(cls)
-            .where(
-                cls.enabled.is_(True),
-            )
-            .order_by(cls.order)
-        ).all()
-        cache_region.set(cache_key, result)
-
         return result
 
     @staticmethod
     def get_colour(
         session: Session, text: str, foreground: bool = False
-    ) -> str:
+    ) -> Optional[str]:
         """
         Parse text and return background (foreground if foreground==True) colour
         string if matched, else None
@@ -118,10 +94,16 @@ class NoteColours(dbtables.NoteColoursTable):
         """
 
         if not text:
-            return ""
+            return None
 
         match = False
-        for rec in NoteColours.get_all(session):
+        for rec in session.scalars(
+            select(NoteColours)
+            .where(
+                NoteColours.enabled.is_(True),
+            )
+            .order_by(NoteColours.order)
+        ).all():
             if rec.is_regex:
                 flags = re.UNICODE
                 if not rec.is_casesensitive:
@@ -139,16 +121,10 @@ class NoteColours(dbtables.NoteColoursTable):
 
             if match:
                 if foreground:
-                    return rec.foreground or ""
+                    return rec.foreground
                 else:
                     return rec.colour
-        return ""
+        return None
-
-    @staticmethod
-    def invalidate_cache() -> None:
-        """Invalidate dogpile cache"""
-
-        cache_region.delete("note_colours_all")
 
 
 class Playdates(dbtables.PlaydatesTable):
@@ -520,13 +496,9 @@ class PlaylistRows(dbtables.PlaylistRowsTable):
         For passed playlist, return a list of rows.
         """
 
-        stmt = (
+        plrs = session.scalars(
-            select(cls)
+            select(cls).where(cls.playlist_id == playlist_id).order_by(cls.row_number)
-            .where(cls.playlist_id == playlist_id)
+        ).all()
-            .options(selectinload(cls.track))
-            .order_by(cls.row_number)
-        )
-        plrs = session.execute(stmt).scalars().all()
 
         return plrs
 

app/music_manager.py

@@ -6,7 +6,6 @@ from time import sleep
 from typing import Optional
 
 # Third party imports
-# import line_profiler
 import numpy as np
 import pyqtgraph as pg  # type: ignore
 from sqlalchemy.orm.session import Session
@@ -30,7 +29,6 @@ from log import log
 from models import PlaylistRows
 from vlcmanager import VLCManager
 
-
 # Define the VLC callback function type
 # import ctypes
 # import platform
@@ -354,6 +352,21 @@ class _Music:
             self.player.set_position(position)
         self.start_dt = start_time
 
+        # For as-yet unknown reasons. sometimes the volume gets
+        # reset to zero within 200mS or so of starting play. This
+        # only happened since moving to Debian 12, which uses
+        # Pipewire for sound (which may be irrelevant).
+        # It has been known for the volume to need correcting more
+        # than once in the first 200mS.
+        # Update August 2024: This no longer seems to be an issue
+        # for _ in range(3):
+        #     if self.player:
+        #         volume = self.player.audio_get_volume()
+        #         if volume < Config.VLC_VOLUME_DEFAULT:
+        #             self.set_volume(Config.VLC_VOLUME_DEFAULT)
+        #             log.error(f"Reset from {volume=}")
+        #     sleep(0.1)
+
     def set_position(self, position: float) -> None:
         """
         Set player position
@@ -377,6 +390,17 @@ class _Music:
             volume = Config.VLC_VOLUME_DEFAULT
 
         self.player.audio_set_volume(volume)
+        # Ensure volume correct
+        # For as-yet unknown reasons. sometimes the volume gets
+        # reset to zero within 200mS or so of starting play. This
+        # only happened since moving to Debian 12, which uses
+        # Pipewire for sound (which may be irrelevant).
+        for _ in range(3):
+            current_volume = self.player.audio_get_volume()
+            if current_volume < volume:
+                self.player.audio_set_volume(volume)
+                log.debug(f"Reset from {volume=}")
+            sleep(0.1)
 
     def stop(self) -> None:
         """Immediately stop playing"""
@@ -415,12 +439,6 @@ class RowAndTrack:
         self.row_number = playlist_row.row_number
         self.track_id = playlist_row.track_id
 
-        # Playlist display data
-        self.row_fg: Optional[str] = None
-        self.row_bg: Optional[str] = None
-        self.note_fg: Optional[str] = None
-        self.note_bg: Optional[str] = None
-
         # Collect track data if there's a track
         if playlist_row.track_id:
             self.artist = playlist_row.track.artist
@@ -440,7 +458,7 @@ class RowAndTrack:
             self.title = playlist_row.track.title
         else:
             self.artist = ""
-            self.bitrate = 0
+            self.bitrate = None
             self.duration = 0
             self.fade_at = 0
             self.intro = None

app/musicmuster.py

@@ -57,13 +57,11 @@ from PyQt6.QtWidgets import (
 )
 
 # Third party imports
-# import line_profiler
 from pygame import mixer
 from sqlalchemy.orm.session import Session
 import stackprinter  # type: ignore
 
 # App imports
-from audacity_controller import AudacityController
 from classes import (
     ApplicationError,
     Filter,
@@ -73,8 +71,8 @@ from classes import (
 from config import Config
 from dialogs import TrackSelectDialog
 from file_importer import FileImporter
-from log import log, log_call
+from helpers import file_is_unreadable, get_name
-from helpers import ask_yes_no, file_is_unreadable, get_name, show_warning
+from log import log
 from models import db, Playdates, PlaylistRows, Playlists, Queries, Settings, Tracks
 from music_manager import RowAndTrack, track_sequence
 from playlistmodel import PlaylistModel, PlaylistProxyModel
@@ -90,7 +88,6 @@ from ui.main_window_footer_ui import Ui_FooterSection  # type: ignore
 from utilities import check_db, update_bitrates
 import helpers
 
-from jittermonitor import EventLoopJitterMonitor
 
 class Current:
     base_model: PlaylistModel
@@ -770,14 +767,22 @@ class PreviewManager:
 
         self.intro = ms
 
-    def set_track_info(self, track_id: int, track_intro: int, track_path: str) -> None:
+    def set_track_info(self, info: TrackInfo) -> None:
-        self.track_id = track_id
+        self.track_id = info.track_id
-        self.intro = track_intro
+        self.row_number = info.row_number
-        self.path = track_path
+
+        with db.Session() as session:
+            track = session.get(Tracks, self.track_id)
+            if not track:
+                raise ValueError(
+                    f"PreviewManager: unable to retreive track {self.track_id=}"
+                )
+        self.intro = track.intro
+        self.path = track.path
 
         # Check file readable
         if file_is_unreadable(self.path):
-            raise ValueError(f"PreviewManager.__init__: {track_path=} unreadable")
+            raise ValueError(f"PreviewManager.__init__: {track.path=} unreadable")
 
         mixer.music.load(self.path)
 
@@ -785,6 +790,7 @@ class PreviewManager:
         mixer.music.stop()
         mixer.music.unload()
         self.path = ""
+        self.row_number = None
         self.track_id = 0
         self.start_time = None
 
@@ -1207,26 +1213,9 @@ class Window(QMainWindow):
         self.action_quicklog = QShortcut(QKeySequence("Ctrl+L"), self)
         self.action_quicklog.activated.connect(self.quicklog)
 
-
-        # Jitter monitor - log delays in main event loop
-        self.jitter_monitor = EventLoopJitterMonitor(
-            parent=self,
-            interval_ms=20,
-            jitter_threshold_ms=100,   # only care about >~100 ms
-            log_cooldown_s=1.0,        # at most 1 warning per second
-        )
-        self.jitter_monitor.start()
-
         self.load_last_playlists()
         self.stop_autoplay = False
 
-        # Set up for Audacity
-        try:
-            self.ac: Optional[AudacityController] = AudacityController()
-        except ApplicationError as e:
-            self.ac = None
-            show_warning(self, "Audacity error", str(e))
-
     # # # # # # # # # # Overrides # # # # # # # # # #
 
     def closeEvent(self, event: Optional[QCloseEvent]) -> None:
@@ -1450,27 +1439,7 @@ class Window(QMainWindow):
 
         # Keep a reference else it will be gc'd
         self.query_dialog = QueryDialog(session, query_id)
-        if self.query_dialog.exec():
+        self.query_dialog.exec()
-            new_row_number = self.current_row_or_end()
-            base_model = self.current.base_model
-            for track_id in self.query_dialog.selected_tracks:
-                # Check whether track is already in playlist
-                move_existing = False
-                existing_prd = base_model.is_track_in_playlist(track_id)
-                if existing_prd is not None:
-                    if ask_yes_no(
-                        "Duplicate row",
-                        "Track already in playlist. " "Move to new location?",
-                        default_yes=True,
-                    ):
-                        move_existing = True
-
-                if move_existing and existing_prd:
-                    base_model.move_track_add_note(new_row_number, existing_prd, note="")
-                else:
-                    base_model.insert_row(new_row_number, track_id)
-
-            new_row_number += 1
 
     # # # # # # # # # # Playlist management functions # # # # # # # # # #
 
@@ -1486,7 +1455,6 @@ class Window(QMainWindow):
 
         return Playlists(session, name, template_id)
 
-    @log_call
     def _open_playlist(self, playlist: Playlists, is_template: bool = False) -> int:
         """
         With passed playlist:
@@ -2009,7 +1977,6 @@ class Window(QMainWindow):
             dlg.exec()
             session.commit()
 
-    @log_call
     def load_last_playlists(self) -> None:
         """Load the playlists that were open when the last session closed"""
 
@@ -2156,7 +2123,7 @@ class Window(QMainWindow):
 
         webbrowser.get("browser").open_new_tab(url)
 
-    def paste_rows(self, dummy_for_profiling: int | None = None) -> None:
+    def paste_rows(self) -> None:
         """
         Paste earlier cut rows.
         """
@@ -2217,6 +2184,14 @@ class Window(QMainWindow):
         if self.return_pressed_in_error():
             return
 
+        # Issue #223 concerns a very short pause (maybe 0.1s) sometimes
+        # when starting to play at track. Resolution appears to be to
+        # disable timer10 for a short time. Timer is re-enabled in
+        # update_clocks.
+
+        self.timer10.stop()
+        log.debug("issue223: play_next: 10ms timer disabled")
+
         # If there's currently a track playing, fade it.
         if track_sequence.current:
             track_sequence.current.fade()
@@ -2288,33 +2263,15 @@ class Window(QMainWindow):
                     return
             if not track_info:
                 return
-            self.preview_manager.row_number = track_info.row_number
+            self.preview_manager.set_track_info(track_info)
-            with db.Session() as session:
+            self.preview_manager.play()
-                track = session.get(Tracks, track_info.track_id)
-                if not track:
-                    raise ApplicationError(
-                        f"musicmuster.preview: unable to retreive track {track_info.track_id=}"
-                    )
-                self.preview_manager.set_track_info(
-                    track_id=track.id,
-                    track_path=track.path,
-                    track_intro=track.intro
-                )
-                self.preview_manager.play()
-                self.show_status_message(
-                    f"Preview: {track.title} / {track.artist} (row {track_info.row_number})",
-                    0
-                )
         else:
             self.preview_manager.stop()
-            self.show_status_message("", 0)
 
     def preview_arm(self):
         """Manager arm button for setting intro length"""
 
-        self.footer_section.btnPreviewMark.setEnabled(
+        self.footer_section.btnPreviewMark.setEnabled(self.btnPreviewArm.isChecked())
-            self.footer_section.btnPreviewArm.isChecked()
-        )
 
     def preview_back(self) -> None:
         """Wind back preview file"""
@@ -2351,10 +2308,7 @@ class Window(QMainWindow):
                     session.commit()
                     self.preview_manager.set_intro(intro)
                     self.current.base_model.refresh_row(session, row_number)
-                    roles = [
+                    self.current.base_model.invalidate_row(row_number)
-                        Qt.ItemDataRole.DisplayRole,
-                    ]
-                    self.current.base_model.invalidate_row(row_number, roles)
 
     def preview_start(self) -> None:
         """Restart preview"""
@@ -2574,14 +2528,10 @@ class Window(QMainWindow):
     def show_status_message(self, message: str, timing: int) -> None:
         """
         Show status message in status bar for timing milliseconds
-        Clear message if message is null string
         """
 
         if self.statusbar:
-            if message:
+            self.statusbar.showMessage(message, timing)
-                self.statusbar.showMessage(message, timing)
-            else:
-                self.statusbar.clearMessage()
 
     def show_track(self, playlist_track: RowAndTrack) -> None:
         """Scroll to show track in plt"""
@@ -2728,7 +2678,8 @@ class Window(QMainWindow):
 
             # WARNING_MS_BEFORE_FADE milliseconds before fade starts, set
             # warning colour on time to silence box and enable play
-            # controls. 
+            # controls. This is also a good time to re-enable the 10ms
+            # timer (see play_next() and issue #223).
 
             elif time_to_fade <= Config.WARNING_MS_BEFORE_FADE:
                 self.footer_section.frame_fade.setStyleSheet(
@@ -2736,6 +2687,10 @@ class Window(QMainWindow):
                 )
                 self.catch_return_key = False
                 self.show_status_message("Play controls: Enabled", 0)
+                # Re-enable 10ms timer (see above)
+                if not self.timer10.isActive():
+                    self.timer10.start(10)
+                    log.debug("issue223: update_clocks: 10ms timer enabled")
 
             else:
                 self.footer_section.frame_silent.setStyleSheet("")
@@ -2856,8 +2811,8 @@ if __name__ == "__main__":
         with db.Session() as session:
             update_bitrates(session)
     else:
-        app = QApplication(sys.argv)
         try:
+            app = QApplication(sys.argv)
             # PyQt6 defaults to a grey for labels
             palette = app.palette()
             palette.setColor(
@@ -2875,7 +2830,6 @@ if __name__ == "__main__":
             win.show()
             status = app.exec()
             sys.exit(status)
-
         except Exception as exc:
             if os.environ["MM_ENV"] == "PRODUCTION":
                 from helpers import send_mail
@@ -2889,8 +2843,10 @@ if __name__ == "__main__":
                 )
                 log.debug(msg)
             else:
+                print("\033[1;31;47mUnhandled exception starts")
                 print(
                     stackprinter.format(
                         exc, suppressed_paths=["/pypoetry/virtualenvs/"], style="darkbg"
                     )
                 )
+                print("Unhandled exception ends\033[1;37;40m")

app/playlistmodel.py

@@ -1,4 +1,5 @@
 # Standard library imports
+# Allow forward reference to PlaylistModel
 from __future__ import annotations
 
 from operator import attrgetter
@@ -11,6 +12,7 @@ import re
 from PyQt6.QtCore import (
     QAbstractTableModel,
     QModelIndex,
+    QObject,
     QRegularExpression,
     QSortFilterProxyModel,
     Qt,
@@ -24,7 +26,6 @@ from PyQt6.QtGui import (
 )
 
 # Third party imports
-# import line_profiler
 from sqlalchemy.orm.session import Session
 import obswebsocket  # type: ignore
 
@@ -46,12 +47,12 @@ from helpers import (
     remove_substring_case_insensitive,
     set_track_metadata,
 )
-from log import log, log_call
+from log import log
 from models import db, NoteColours, Playdates, PlaylistRows, Tracks
 from music_manager import RowAndTrack, track_sequence
 
 
-HEADER_NOTES_COLUMN = 0
+HEADER_NOTES_COLUMN = 1
 scene_change_re = re.compile(r"SetScene=\[([^[\]]*)\]")
 
 
@@ -75,13 +76,14 @@ class PlaylistModel(QAbstractTableModel):
         self,
         playlist_id: int,
         is_template: bool,
+        *args: Optional[QObject],
+        **kwargs: Optional[QObject],
     ) -> None:
-        super().__init__()
-
         log.debug("PlaylistModel.__init__()")
 
         self.playlist_id = playlist_id
         self.is_template = is_template
+        super().__init__(*args, **kwargs)
 
         self.playlist_rows: dict[int, RowAndTrack] = {}
         self.signals = MusicMusterSignals()
@@ -99,17 +101,13 @@ class PlaylistModel(QAbstractTableModel):
 
     def __repr__(self) -> str:
         return (
-            f"<PlaylistModel: playlist_id={self.playlist_id}, "
+            f"<PlaylistModel: playlist_id={self.playlist_id}, {self.rowCount()} rows>"
-            f"is_template={self.is_template}, "
-            f"{self.rowCount()} rows>"
         )
 
     def active_section_header(self) -> int:
         """
-        Return the row number of the first header that has any of the following below it:
+        Return the row number of the first header that has either unplayed tracks
-         - unplayed tracks
+        or currently being played track below it.
-         - the currently being played track
-         - the track marked as next to play
         """
 
         header_row = 0
@@ -121,20 +119,23 @@ class PlaylistModel(QAbstractTableModel):
             if not self.is_played_row(row_number):
                 break
 
-            # Here means that row_number points to a played track. The
+            # If track is played, we need to check it's not the current
-            # current track will be marked as played when we start
+            # next or previous track because we don't want to scroll them
-            # playing it. It's also possible that the track marked as
+            # out of view
-            # next has already been played. Check for either of those.
 
-            for ts in [track_sequence.next, track_sequence.current]:
+            for ts in [
+                track_sequence.next,
+                track_sequence.current,
+            ]:
                 if (
                     ts
                     and ts.row_number == row_number
                     and ts.playlist_id == self.playlist_id
                 ):
-                    # We've found the current or next track, so return
+                    break
-                    # the last-found header row
+            else:
-                    return header_row
+                continue  # continue iterating over playlist_rows
+            break  # current row is in one of the track sequences
 
         return header_row
 
@@ -151,54 +152,44 @@ class PlaylistModel(QAbstractTableModel):
         try:
             rat = self.playlist_rows[row_number]
         except KeyError:
-            raise ApplicationError(
+            log.error(
                 f"{self}: KeyError in add_track_to_header ({row_number=}, {track_id=})"
             )
+            return
         if rat.path:
-            raise ApplicationError(
+            log.error(
                 f"{self}: Header row already has track associated ({rat=}, {track_id=})"
             )
+            return
         with db.Session() as session:
             playlistrow = session.get(PlaylistRows, rat.playlistrow_id)
-            if not playlistrow:
+            if playlistrow:
-                raise ApplicationError(
+                # Add track to PlaylistRows
-                    f"{self}: Failed to retrieve playlist row ({rat.playlistrow_id=}"
+                playlistrow.track_id = track_id
-                )
+                # Add any further note (header will already have a note)
-            # Add track to PlaylistRows
+                if note:
-            playlistrow.track_id = track_id
+                    playlistrow.note += "\n" + note
-            # Add any further note (header will already have a note)
+                # Update local copy
-            if note:
+                self.refresh_row(session, row_number)
-                playlistrow.note += " " + note
+                # Repaint row
-            session.commit()
+                self.invalidate_row(row_number)
-
+                session.commit()
-            # Update local copy
-            self.refresh_row(session, row_number)
-            # Repaint row
-            roles = [
-                Qt.ItemDataRole.BackgroundRole,
-                Qt.ItemDataRole.DisplayRole,
-                Qt.ItemDataRole.FontRole,
-                Qt.ItemDataRole.ForegroundRole,
-            ]
-            # only invalidate required roles
-            self.invalidate_row(row_number, roles)
 
         self.signals.resize_rows_signal.emit(self.playlist_id)
 
-    def _background_role(self, row: int, column: int, rat: RowAndTrack) -> QBrush:
+    def background_role(self, row: int, column: int, rat: RowAndTrack) -> QBrush:
         """Return background setting"""
 
         # Handle entire row colouring
         # Header row
         if self.is_header_row(row):
             # Check for specific header colouring
-            if rat.row_bg is None:
+            with db.Session() as session:
-                with db.Session() as session:
+                note_background = NoteColours.get_colour(session, rat.note)
-                    rat.row_bg = NoteColours.get_colour(session, rat.note)
+                if note_background:
-            if rat.row_bg:
+                    return QBrush(QColor(note_background))
-                return QBrush(QColor(rat.row_bg))
+                else:
-            else:
+                    return QBrush(QColor(Config.COLOUR_NOTES_PLAYLIST))
-                return QBrush(QColor(Config.COLOUR_NOTES_PLAYLIST))
         # Unreadable track file
         if file_is_unreadable(rat.path):
             return QBrush(QColor(Config.COLOUR_UNREADABLE))
@@ -230,11 +221,10 @@ class PlaylistModel(QAbstractTableModel):
                 return QBrush(QColor(Config.COLOUR_BITRATE_OK))
         if column == Col.NOTE.value:
             if rat.note:
-                if rat.note_bg is None:
+                with db.Session() as session:
-                    with db.Session() as session:
+                    note_background = NoteColours.get_colour(session, rat.note)
-                        rat.note_bg = NoteColours.get_colour(session, rat.note)
+                    if note_background:
-                if rat.note_bg:
+                        return QBrush(QColor(note_background))
-                    return QBrush(QColor(rat.note_bg))
 
         return QBrush()
 
@@ -267,27 +257,26 @@ class PlaylistModel(QAbstractTableModel):
         - update track times
         """
 
-        log.debug(f"{self}: current_track_started()")
-
         if not track_sequence.current:
             return
 
         row_number = track_sequence.current.row_number
 
         # Check for OBS scene change
+        log.debug(f"{self}: Call OBS scene change")
         self.obs_scene_change(row_number)
 
         # Sanity check that we have a track_id
-        track_id = track_sequence.current.track_id
+        if not track_sequence.current.track_id:
-        if not track_id:
+            log.error(
-            raise ApplicationError(
+                f"{self}: current_track_started() called with {track_sequence.current.track_id=}"
-                f"{self}: current_track_started() called with {track_id=}"
             )
+            return
 
         with db.Session() as session:
             # Update Playdates in database
-            log.debug(f"{self}: update playdates {track_id=}")
+            log.debug(f"{self}: update playdates")
-            Playdates(session, track_id)
+            Playdates(session, track_sequence.current.track_id)
 
             # Mark track as played in playlist
             log.debug(f"{self}: Mark track as played")
@@ -297,62 +286,43 @@ class PlaylistModel(QAbstractTableModel):
                 self.refresh_row(session, plr.row_number)
             else:
                 log.error(
-                    f"{self}: Can't retrieve plr, "
+                    f"{self}: Can't retrieve plr, {track_sequence.current.playlistrow_id=}"
-                    f"{track_sequence.current.playlistrow_id=}"
                 )
-            session.commit()
 
-        # Update colour and times for current row
+            # Update colour and times for current row
-        # only invalidate required roles
+            self.invalidate_row(row_number)
-        roles = [
-            Qt.ItemDataRole.DisplayRole
-        ]
-        self.invalidate_row(row_number, roles)
 
-        # Update previous row in case we're hiding played rows
+            # Update previous row in case we're hiding played rows
-        if track_sequence.previous and track_sequence.previous.row_number:
+            if track_sequence.previous and track_sequence.previous.row_number:
-            # only invalidate required roles
+                self.invalidate_row(track_sequence.previous.row_number)
-            self.invalidate_row(track_sequence.previous.row_number, roles)
 
-        # Find next track
+            # Update all other track times
-        next_row = None
-        unplayed_rows = [
-            a
-            for a in self.get_unplayed_rows()
-            if not self.is_header_row(a)
-            and not file_is_unreadable(self.playlist_rows[a].path)
-        ]
-        if unplayed_rows:
-            try:
-                next_row = min([a for a in unplayed_rows if a > row_number])
-            except ValueError:
-                next_row = min(unplayed_rows)
-        if next_row is not None:
-            self.set_next_row(next_row)
-        else:
-            # set_next_row() calls update_track_times(); else we call it
             self.update_track_times()
 
+            # Find next track
+            next_row = None
+            unplayed_rows = [
+                a
+                for a in self.get_unplayed_rows()
+                if not self.is_header_row(a)
+                and not file_is_unreadable(self.playlist_rows[a].path)
+            ]
+            if unplayed_rows:
+                try:
+                    next_row = min([a for a in unplayed_rows if a > row_number])
+                except ValueError:
+                    next_row = min(unplayed_rows)
+            if next_row is not None:
+                self.set_next_row(next_row)
+
+            session.commit()
 
     def data(
         self, index: QModelIndex, role: int = Qt.ItemDataRole.DisplayRole
-    ) -> QVariant | QFont | QBrush | str | int:
+    ) -> QVariant:
         """Return data to view"""
 
-        if (
+        if not index.isValid() or not (0 <= index.row() < len(self.playlist_rows)):
-            not index.isValid()
-            or not (0 <= index.row() < len(self.playlist_rows))
-            or role
-            in [
-                Qt.ItemDataRole.DecorationRole,
-                Qt.ItemDataRole.StatusTipRole,
-                Qt.ItemDataRole.WhatsThisRole,
-                Qt.ItemDataRole.SizeHintRole,
-                Qt.ItemDataRole.TextAlignmentRole,
-                Qt.ItemDataRole.CheckStateRole,
-                Qt.ItemDataRole.InitialSortOrderRole,
-            ]
-        ):
             return QVariant()
 
         row = index.row()
@@ -360,21 +330,32 @@ class PlaylistModel(QAbstractTableModel):
         # rat for playlist row data as it's used a lot
         rat = self.playlist_rows[row]
 
-        # These are ordered in approximately the frequency with which
+        # Dispatch to role-specific functions
-        # they are called
+        dispatch_table = {
-        if role == Qt.ItemDataRole.BackgroundRole:
+            int(Qt.ItemDataRole.BackgroundRole): self.background_role,
-            return self._background_role(row, column, rat)
+            int(Qt.ItemDataRole.DisplayRole): self.display_role,
-        elif role == Qt.ItemDataRole.DisplayRole:
+            int(Qt.ItemDataRole.EditRole): self.edit_role,
-            return self._display_role(row, column, rat)
+            int(Qt.ItemDataRole.FontRole): self.font_role,
-        elif role == Qt.ItemDataRole.EditRole:
+            int(Qt.ItemDataRole.ForegroundRole): self.foreground_role,
-            return self._edit_role(row, column, rat)
+            int(Qt.ItemDataRole.ToolTipRole): self.tooltip_role,
-        elif role == Qt.ItemDataRole.FontRole:
+        }
-            return self._font_role(row, column, rat)
-        elif role == Qt.ItemDataRole.ForegroundRole:
-            return self._foreground_role(row, column, rat)
-        elif role == Qt.ItemDataRole.ToolTipRole:
-            return self._tooltip_role(row, column, rat)
 
+        if role in dispatch_table:
+            return QVariant(dispatch_table[role](row, column, rat))
+
+        # Document other roles but don't use them
+        if role in [
+            Qt.ItemDataRole.DecorationRole,
+            Qt.ItemDataRole.StatusTipRole,
+            Qt.ItemDataRole.WhatsThisRole,
+            Qt.ItemDataRole.SizeHintRole,
+            Qt.ItemDataRole.TextAlignmentRole,
+            Qt.ItemDataRole.CheckStateRole,
+            Qt.ItemDataRole.InitialSortOrderRole,
+        ]:
+            return QVariant()
+
+        # Fall through to no-op
         return QVariant()
 
     def delete_rows(self, row_numbers: list[int]) -> None:
@@ -404,9 +385,8 @@ class PlaylistModel(QAbstractTableModel):
                 super().endRemoveRows()
 
         self.reset_track_sequence_row_numbers()
-        self.update_track_times()
 
-    def _display_role(self, row: int, column: int, rat: RowAndTrack) -> str:
+    def display_role(self, row: int, column: int, rat: RowAndTrack) -> QVariant:
         """
         Return text for display
         """
@@ -417,7 +397,7 @@ class PlaylistModel(QAbstractTableModel):
         if column == HEADER_NOTES_COLUMN:
             column_span = 1
             if header_row:
-                column_span = self.columnCount() - HEADER_NOTES_COLUMN
+                column_span = self.columnCount() - 1
             self.signals.span_cells_signal.emit(
                 self.playlist_id, row, HEADER_NOTES_COLUMN, 1, column_span
             )
@@ -426,45 +406,45 @@ class PlaylistModel(QAbstractTableModel):
             if column == HEADER_NOTES_COLUMN:
                 header_text = self.header_text(rat)
                 if not header_text:
-                    return Config.SECTION_HEADER
+                    return QVariant(Config.TEXT_NO_TRACK_NO_NOTE)
                 else:
                     formatted_header = self.header_text(rat)
                     trimmed_header = self.remove_section_timer_markers(formatted_header)
-                    return trimmed_header
+                    return QVariant(trimmed_header)
             else:
-                return ""
+                return QVariant("")
 
         if column == Col.START_TIME.value:
             start_time = rat.forecast_start_time
             if start_time:
-                return start_time.strftime(Config.TRACK_TIME_FORMAT)
+                return QVariant(start_time.strftime(Config.TRACK_TIME_FORMAT))
-            return ""
+            return QVariant()
 
         if column == Col.END_TIME.value:
             end_time = rat.forecast_end_time
             if end_time:
-                return end_time.strftime(Config.TRACK_TIME_FORMAT)
+                return QVariant(end_time.strftime(Config.TRACK_TIME_FORMAT))
-            return ""
+            return QVariant()
 
         if column == Col.INTRO.value:
             if rat.intro:
-                return f"{rat.intro / 1000:{Config.INTRO_SECONDS_FORMAT}}"
+                return QVariant(f"{rat.intro / 1000:{Config.INTRO_SECONDS_FORMAT}}")
             else:
-                return ""
+                return QVariant("")
 
-        dispatch_table: dict[int, str] = {
+        dispatch_table = {
-            Col.ARTIST.value: rat.artist,
+            Col.ARTIST.value: QVariant(rat.artist),
-            Col.BITRATE.value: str(rat.bitrate),
+            Col.BITRATE.value: QVariant(rat.bitrate),
-            Col.DURATION.value: ms_to_mmss(rat.duration),
+            Col.DURATION.value: QVariant(ms_to_mmss(rat.duration)),
-            Col.LAST_PLAYED.value: get_relative_date(rat.lastplayed),
+            Col.LAST_PLAYED.value: QVariant(get_relative_date(rat.lastplayed)),
-            Col.NOTE.value: rat.note,
+            Col.NOTE.value: QVariant(rat.note),
-            Col.START_GAP.value: str(rat.start_gap),
+            Col.START_GAP.value: QVariant(rat.start_gap),
-            Col.TITLE.value: rat.title,
+            Col.TITLE.value: QVariant(rat.title),
         }
         if column in dispatch_table:
             return dispatch_table[column]
 
-        return ""
+        return QVariant()
 
     def end_reset_model(self, playlist_id: int) -> None:
         """
@@ -481,38 +461,37 @@ class PlaylistModel(QAbstractTableModel):
         super().endResetModel()
         self.reset_track_sequence_row_numbers()
 
-    def _edit_role(self, row: int, column: int, rat: RowAndTrack) -> str | int:
+    def edit_role(self, row: int, column: int, rat: RowAndTrack) -> QVariant:
         """
-        Return value for editing
+        Return text for editing
         """
 
         # If this is a header row and we're being asked for the
         # HEADER_NOTES_COLUMN, return the note value
         if self.is_header_row(row) and column == HEADER_NOTES_COLUMN:
-            return rat.note
+            return QVariant(rat.note)
 
         if column == Col.INTRO.value:
-            return rat.intro or 0
+            return QVariant(rat.intro)
         if column == Col.TITLE.value:
-            return rat.title
+            return QVariant(rat.title)
         if column == Col.ARTIST.value:
-            return rat.artist
+            return QVariant(rat.artist)
         if column == Col.NOTE.value:
-            return rat.note
+            return QVariant(rat.note)
 
-        return ""
+        return QVariant()
 
-    def _foreground_role(self, row: int, column: int, rat: RowAndTrack) -> QBrush:
+    def foreground_role(self, row: int, column: int, rat: RowAndTrack) -> QBrush:
         """Return header foreground colour or QBrush() if none"""
 
         if self.is_header_row(row):
-            if rat.row_fg is None:
+            with db.Session() as session:
-                with db.Session() as session:
+                note_foreground = NoteColours.get_colour(
-                    rat.row_fg = NoteColours.get_colour(
+                    session, rat.note, foreground=True
-                        session, rat.note, foreground=True
+                )
-                    )
+                if note_foreground:
-            if rat.row_fg:
+                    return QBrush(QColor(note_foreground))
-                return QBrush(QColor(rat.row_fg))
 
         return QBrush()
 
@@ -534,24 +513,24 @@ class PlaylistModel(QAbstractTableModel):
             Col.ARTIST.value,
             Col.NOTE.value,
             Col.INTRO.value,
-        ] or self.is_header_row(index.row()) and index.column() == HEADER_NOTES_COLUMN:
+        ]:
             return default | Qt.ItemFlag.ItemIsEditable
 
         return default
 
-    def _font_role(self, row: int, column: int, rat: RowAndTrack) -> QFont:
+    def font_role(self, row: int, column: int, rat: RowAndTrack) -> QVariant:
         """
         Return font
         """
 
         # Notes column is never bold
         if column == Col.NOTE.value:
-            return QFont()
+            return QVariant()
 
         boldfont = QFont()
         boldfont.setBold(not self.playlist_rows[row].played)
 
-        return boldfont
+        return QVariant(boldfont)
 
     def get_duplicate_rows(self) -> list[int]:
         """
@@ -640,6 +619,7 @@ class PlaylistModel(QAbstractTableModel):
             for a in self.playlist_rows.values()
             if not a.played and a.track_id is not None
         ]
+        # log.debug(f"{self}: get_unplayed_rows() returned: {result=}")
         return result
 
     def headerData(
@@ -647,22 +627,22 @@ class PlaylistModel(QAbstractTableModel):
         section: int,
         orientation: Qt.Orientation,
         role: int = Qt.ItemDataRole.DisplayRole,
-    ) -> str | int | QFont | QVariant:
+    ) -> QVariant:
         """
         Return text for headers
         """
 
         display_dispatch_table = {
-            Col.START_GAP.value: Config.HEADER_START_GAP,
+            Col.START_GAP.value: QVariant(Config.HEADER_START_GAP),
-            Col.INTRO.value: Config.HEADER_INTRO,
+            Col.INTRO.value: QVariant(Config.HEADER_INTRO),
-            Col.TITLE.value: Config.HEADER_TITLE,
+            Col.TITLE.value: QVariant(Config.HEADER_TITLE),
-            Col.ARTIST.value: Config.HEADER_ARTIST,
+            Col.ARTIST.value: QVariant(Config.HEADER_ARTIST),
-            Col.DURATION.value: Config.HEADER_DURATION,
+            Col.DURATION.value: QVariant(Config.HEADER_DURATION),
-            Col.START_TIME.value: Config.HEADER_START_TIME,
+            Col.START_TIME.value: QVariant(Config.HEADER_START_TIME),
-            Col.END_TIME.value: Config.HEADER_END_TIME,
+            Col.END_TIME.value: QVariant(Config.HEADER_END_TIME),
-            Col.LAST_PLAYED.value: Config.HEADER_LAST_PLAYED,
+            Col.LAST_PLAYED.value: QVariant(Config.HEADER_LAST_PLAYED),
-            Col.BITRATE.value: Config.HEADER_BITRATE,
+            Col.BITRATE.value: QVariant(Config.HEADER_BITRATE),
-            Col.NOTE.value: Config.HEADER_NOTE,
+            Col.NOTE.value: QVariant(Config.HEADER_NOTE),
         }
 
         if role == Qt.ItemDataRole.DisplayRole:
@@ -670,14 +650,14 @@ class PlaylistModel(QAbstractTableModel):
                 return display_dispatch_table[section]
             else:
                 if Config.ROWS_FROM_ZERO:
-                    return section
+                    return QVariant(str(section))
                 else:
-                    return section + 1
+                    return QVariant(str(section + 1))
 
         elif role == Qt.ItemDataRole.FontRole:
             boldfont = QFont()
             boldfont.setBold(True)
-            return boldfont
+            return QVariant(boldfont)
 
         return QVariant()
 
@@ -715,11 +695,7 @@ class PlaylistModel(QAbstractTableModel):
         self.played_tracks_hidden = hide
         for row_number in range(len(self.playlist_rows)):
             if self.is_played_row(row_number):
-                # only invalidate required roles
+                self.invalidate_row(row_number)
-                roles = [
-                    Qt.ItemDataRole.DisplayRole,
-                ]
-                self.invalidate_row(row_number, roles)
 
     def insert_row(
         self,
@@ -751,16 +727,9 @@ class PlaylistModel(QAbstractTableModel):
 
         self.signals.resize_rows_signal.emit(self.playlist_id)
         self.reset_track_sequence_row_numbers()
-        # only invalidate required roles
+        self.invalidate_rows(list(range(new_row_number, len(self.playlist_rows))))
-        roles = [
-            Qt.ItemDataRole.BackgroundRole,
-            Qt.ItemDataRole.DisplayRole,
-            Qt.ItemDataRole.FontRole,
-            Qt.ItemDataRole.ForegroundRole,
-        ]
-        self.invalidate_rows(list(range(new_row_number, len(self.playlist_rows))), roles)
 
-    def invalidate_row(self, modified_row: int, roles: list[Qt.ItemDataRole]) -> None:
+    def invalidate_row(self, modified_row: int) -> None:
         """
         Signal to view to refresh invalidated row
         """
@@ -768,17 +737,15 @@ class PlaylistModel(QAbstractTableModel):
         self.dataChanged.emit(
             self.index(modified_row, 0),
             self.index(modified_row, self.columnCount() - 1),
-            roles
         )
 
-    def invalidate_rows(self, modified_rows: list[int], roles: list[Qt.ItemDataRole]) -> None:
+    def invalidate_rows(self, modified_rows: list[int]) -> None:
         """
         Signal to view to refresh invlidated rows
         """
 
         for modified_row in modified_rows:
-            # only invalidate required roles
+            self.invalidate_row(modified_row)
-            self.invalidate_row(modified_row, roles)
 
     def is_header_row(self, row_number: int) -> bool:
         """
@@ -853,11 +820,7 @@ class PlaylistModel(QAbstractTableModel):
                 self.refresh_row(session, row_number)
 
         self.update_track_times()
-        # only invalidate required roles
+        self.invalidate_rows(row_numbers)
-        roles = [
-            Qt.ItemDataRole.FontRole,
-        ]
-        self.invalidate_rows(row_numbers, roles)
 
     def move_rows(self, from_rows: list[int], to_row_number: int) -> None:
         """
@@ -922,11 +885,7 @@ class PlaylistModel(QAbstractTableModel):
         # Update display
         self.reset_track_sequence_row_numbers()
         self.update_track_times()
-        # only invalidate required roles
+        self.invalidate_rows(list(row_map.keys()))
-        roles = [
-            Qt.ItemDataRole.DisplayRole,
-        ]
-        self.invalidate_rows(list(row_map.keys()), roles)
 
     def move_rows_between_playlists(
         self,
@@ -1103,11 +1062,7 @@ class PlaylistModel(QAbstractTableModel):
             return
 
         # Update display
-        # only invalidate required roles
+        self.invalidate_row(track_sequence.previous.row_number)
-        roles = [
-            Qt.ItemDataRole.BackgroundRole,
-        ]
-        self.invalidate_row(track_sequence.previous.row_number, roles)
 
     def refresh_data(self, session: Session) -> None:
         """
@@ -1160,11 +1115,7 @@ class PlaylistModel(QAbstractTableModel):
                 playlist_row.track_id = None
                 session.commit()
                 self.refresh_row(session, row_number)
-        # only invalidate required roles
+        self.invalidate_row(row_number)
-        roles = [
-            Qt.ItemDataRole.DisplayRole,
-        ]
-        self.invalidate_row(row_number, roles)
 
     def rescan_track(self, row_number: int) -> None:
         """
@@ -1178,12 +1129,7 @@ class PlaylistModel(QAbstractTableModel):
                 set_track_metadata(track)
                 self.refresh_row(session, row_number)
                 self.update_track_times()
-                roles = [
+                self.invalidate_row(row_number)
-                    Qt.ItemDataRole.BackgroundRole,
-                    Qt.ItemDataRole.DisplayRole,
-                ]
-                # only invalidate required roles
-                self.invalidate_row(row_number, roles)
                 self.signals.resize_rows_signal.emit(self.playlist_id)
                 session.commit()
 
@@ -1197,6 +1143,8 @@ class PlaylistModel(QAbstractTableModel):
         looking up the playlistrow_id and retrieving the row number from the database.
         """
 
+        log.debug(f"{self}: reset_track_sequence_row_numbers()")
+
         # Check the track_sequence.next, current and previous plrs and
         # update the row number
         with db.Session() as session:
@@ -1241,13 +1189,7 @@ class PlaylistModel(QAbstractTableModel):
                     # self.playlist_rows directly.
                     self.playlist_rows[row_number].note = ""
             session.commit()
-        # only invalidate required roles
+        self.invalidate_rows(row_numbers)
-        roles = [
-            Qt.ItemDataRole.BackgroundRole,
-            Qt.ItemDataRole.DisplayRole,
-            Qt.ItemDataRole.ForegroundRole,
-        ]
-        self.invalidate_rows(row_numbers, roles)
 
     def _reversed_contiguous_row_groups(
         self, row_numbers: list[int]
@@ -1456,14 +1398,9 @@ class PlaylistModel(QAbstractTableModel):
                 self.signals.search_songfacts_signal.emit(
                     self.playlist_rows[row_number].title
                 )
-            roles = [
-                Qt.ItemDataRole.BackgroundRole,
-            ]
             if old_next_row is not None:
-                # only invalidate required roles
+                self.invalidate_row(old_next_row)
-                self.invalidate_row(old_next_row, roles)
+            self.invalidate_row(row_number)
-            # only invalidate required roles
-            self.invalidate_row(row_number, roles)
 
         self.signals.next_track_changed_signal.emit()
         self.update_track_times()
@@ -1613,23 +1550,25 @@ class PlaylistModel(QAbstractTableModel):
     def supportedDropActions(self) -> Qt.DropAction:
         return Qt.DropAction.MoveAction | Qt.DropAction.CopyAction
 
-    def _tooltip_role(self, row: int, column: int, rat: RowAndTrack) -> str:
+    def tooltip_role(self, row: int, column: int, rat: RowAndTrack) -> QVariant:
         """
         Return tooltip. Currently only used for last_played column.
         """
 
         if column != Col.LAST_PLAYED.value:
-            return ""
+            return QVariant()
         with db.Session() as session:
             track_id = self.playlist_rows[row].track_id
             if not track_id:
-                return ""
+                return QVariant()
             playdates = Playdates.last_playdates(session, track_id)
-            return "<br>".join(
+            return QVariant(
-                [
+                "<br>".join(
-                    a.lastplayed.strftime(Config.LAST_PLAYED_TOOLTIP_DATE_FORMAT)
+                    [
-                    for a in playdates
+                        a.lastplayed.strftime(Config.LAST_PLAYED_TOOLTIP_DATE_FORMAT)
-                ]
+                        for a in playdates
+                    ]
+                )
             )
 
     def update_or_insert(self, track_id: int, row_number: int) -> None:
@@ -1645,14 +1584,7 @@ class PlaylistModel(QAbstractTableModel):
             with db.Session() as session:
                 for row in track_rows:
                     self.refresh_row(session, row)
-            # only invalidate required roles
+            self.invalidate_rows(track_rows)
-            roles = [
-                Qt.ItemDataRole.BackgroundRole,
-                Qt.ItemDataRole.DisplayRole,
-                Qt.ItemDataRole.FontRole,
-                Qt.ItemDataRole.ForegroundRole,
-            ]
-            self.invalidate_rows(track_rows, roles)
         else:
             self.insert_row(proposed_row_number=row_number, track_id=track_id)
 
@@ -1661,6 +1593,8 @@ class PlaylistModel(QAbstractTableModel):
         Update track start/end times in self.playlist_rows
         """
 
+        log.debug(f"{self}: update_track_times()")
+
         next_start_time: Optional[dt.datetime] = None
         update_rows: list[int] = []
         row_count = len(self.playlist_rows)
@@ -1799,13 +1733,9 @@ class PlaylistProxyModel(QSortFilterProxyModel):
                             # milliseconds so that it hides then. We add
                             # 100mS on so that the if clause above is
                             # true next time through.
-                            # only invalidate required roles
-                            roles = [
-                                Qt.ItemDataRole.DisplayRole,
-                            ]
                             QTimer.singleShot(
                                 Config.HIDE_AFTER_PLAYING_OFFSET + 100,
-                                lambda: self.sourceModel().invalidate_row(source_row, roles),
+                                lambda: self.sourceModel().invalidate_row(source_row),
                             )
                             return True
                     # Next track not playing yet so don't hide previous

app/playlists.py

@@ -31,9 +31,9 @@ from PyQt6.QtWidgets import (
 )
 
 # Third party imports
-# import line_profiler
 
 # App imports
+from audacity_controller import AudacityController
 from classes import ApplicationError, Col, MusicMusterSignals, PlaylistStyle, TrackInfo
 from config import Config
 from dialogs import TrackSelectDialog
@@ -43,7 +43,7 @@ from helpers import (
     show_OK,
     show_warning,
 )
-from log import log, log_call
+from log import log
 from models import db, Settings
 from music_manager import track_sequence
 from playlistmodel import PlaylistModel, PlaylistProxyModel
@@ -183,11 +183,11 @@ class PlaylistDelegate(QStyledItemDelegate):
                 data_modified = False
                 if isinstance(editor, QTextEdit):
                     data_modified = (
-                        self.original_model_data != editor.toPlainText()
+                        self.original_model_data.value() != editor.toPlainText()
                     )
                 elif isinstance(editor, QDoubleSpinBox):
                     data_modified = (
-                        self.original_model_data != int(editor.value()) * 1000
+                        self.original_model_data.value() != int(editor.value()) * 1000
                     )
                 if not data_modified:
                     self.closeEditor.emit(editor)
@@ -246,10 +246,10 @@ class PlaylistDelegate(QStyledItemDelegate):
             edit_index, Qt.ItemDataRole.EditRole
         )
         if index.column() == Col.INTRO.value:
-            if self.original_model_data:
+            if self.original_model_data.value():
-                editor.setValue(self.original_model_data / 1000)
+                editor.setValue(self.original_model_data.value() / 1000)
         else:
-            editor.setPlainText(self.original_model_data)
+            editor.setPlainText(self.original_model_data.value())
 
     def setModelData(self, editor, model, index):
         proxy_model = index.model()
@@ -307,6 +307,13 @@ class PlaylistTab(QTableView):
         self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
         self.setSelectionBehavior(QAbstractItemView.SelectionBehavior.SelectRows)
 
+        # Set up for Audacity
+        try:
+            self.ac: Optional[AudacityController] = AudacityController()
+        except ApplicationError as e:
+            self.ac = None
+            show_warning(self.musicmuster, "Audacity error", str(e))
+
         # Load model, set column widths
         self.setModel(model)
         self._set_column_widths()
@@ -350,7 +357,7 @@ class PlaylistTab(QTableView):
         # Deselect edited line
         self.clear_selection()
 
-    def dropEvent(self, event: Optional[QDropEvent], dummy: int | None = None) -> None:
+    def dropEvent(self, event: Optional[QDropEvent]) -> None:
         """
         Move dropped rows
         """
@@ -538,8 +545,8 @@ class PlaylistTab(QTableView):
         track_path = base_model.get_row_info(model_row_number).path
 
         # Open/import in/from Audacity
-        if track_row and not this_is_current_row and self.musicmuster.ac:
+        if track_row and not this_is_current_row:
-            if track_path == self.musicmuster.ac.path:
+            if self.ac and track_path == self.ac.path:
                 # This track was opened in Audacity
                 self._add_context_menu(
                     "Update from Audacity",
@@ -649,8 +656,8 @@ class PlaylistTab(QTableView):
         that we have an edit open.
         """
 
-        if self.musicmuster.ac:
+        if self.ac:
-            self.musicmuster.ac.path = None
+            self.ac.path = None
 
     def clear_selection(self) -> None:
         """Unselect all tracks and reset drag mode"""
@@ -746,29 +753,14 @@ class PlaylistTab(QTableView):
         if row_count < 1:
             return
 
-        # Don't delete current or next tracks
-        selected_row_numbers = self.selected_model_row_numbers()
-        for ts in [
-            track_sequence.next,
-            track_sequence.current,
-        ]:
-            if ts:
-                if (
-                    ts.playlist_id == self.playlist_id
-                    and ts.row_number in selected_row_numbers
-                ):
-                    self.musicmuster.show_warning(
-                        "Delete not allowed", "Can't delete current or next track"
-                    )
-                    return
-
         # Get confirmation
         plural = "s" if row_count > 1 else ""
         if not ask_yes_no("Delete rows", f"Really delete {row_count} row{plural}?"):
             return
 
         base_model = self.get_base_model()
-        base_model.delete_rows(selected_row_numbers)
+
+        base_model.delete_rows(self.selected_model_row_numbers())
         self.clear_selection()
 
     def get_base_model(self) -> PlaylistModel:
@@ -817,12 +809,14 @@ class PlaylistTab(QTableView):
 
         # Use a set to deduplicate result (a selected row will have all
         # items in that row selected)
-        selected_indexes = self.selectedIndexes()
+        result = sorted(
+            list(
+                set([self.model().mapToSource(a).row() for a in self.selectedIndexes()])
+            )
+        )
 
-        if not selected_indexes:
+        log.debug(f"get_selected_rows() returned: {result=}")
-            return []
+        return result
-
-        return sorted(list(set([self.model().mapToSource(a).row() for a in selected_indexes])))
 
     def get_top_visible_row(self) -> int:
         """
@@ -852,10 +846,10 @@ class PlaylistTab(QTableView):
         Import current Audacity track to passed row
         """
 
-        if not self.musicmuster.ac:
+        if not self.ac:
             return
         try:
-            self.musicmuster.ac.export()
+            self.ac.export()
             self._rescan(row_number)
         except ApplicationError as e:
             show_warning(self.musicmuster, "Audacity error", str(e))
@@ -912,16 +906,15 @@ class PlaylistTab(QTableView):
         Open track in passed row in Audacity
         """
 
-        if not self.musicmuster.ac:
-            return
-
         path = self.get_base_model().get_row_track_path(row_number)
         if not path:
             log.error(f"_open_in_audacity: can't get path for {row_number=}")
             return
 
         try:
-            self.musicmuster.ac.open(path)
+            if not self.ac:
+                self.ac = AudacityController()
+            self.ac.open(path)
         except ApplicationError as e:
             show_warning(self.musicmuster, "Audacity error", str(e))
 

app/querylistmodel.py

@@ -15,7 +15,6 @@ from PyQt6.QtCore import (
     QVariant,
 )
 from PyQt6.QtGui import (
-    QBrush,
     QColor,
     QFont,
 )
@@ -83,27 +82,27 @@ class QuerylistModel(QAbstractTableModel):
     def __repr__(self) -> str:
         return f"<QuerylistModel: filter={self.filter}, {self.rowCount()} rows>"
 
-    def _background_role(self, row: int, column: int, qrow: QueryRow) -> QBrush:
+    def background_role(self, row: int, column: int, qrow: QueryRow) -> QVariant:
         """Return background setting"""
 
         # Unreadable track file
         if file_is_unreadable(qrow.path):
-            return QBrush(QColor(Config.COLOUR_UNREADABLE))
+            return QVariant(QColor(Config.COLOUR_UNREADABLE))
 
         # Selected row
         if row in self._selected_rows:
-            return QBrush(QColor(Config.COLOUR_QUERYLIST_SELECTED))
+            return QVariant(QColor(Config.COLOUR_QUERYLIST_SELECTED))
 
         # Individual cell colouring
         if column == QueryCol.BITRATE.value:
             if not qrow.bitrate or qrow.bitrate < Config.BITRATE_LOW_THRESHOLD:
-                return QBrush(QColor(Config.COLOUR_BITRATE_LOW))
+                return QVariant(QColor(Config.COLOUR_BITRATE_LOW))
             elif qrow.bitrate < Config.BITRATE_OK_THRESHOLD:
-                return QBrush(QColor(Config.COLOUR_BITRATE_MEDIUM))
+                return QVariant(QColor(Config.COLOUR_BITRATE_MEDIUM))
             else:
-                return QBrush(QColor(Config.COLOUR_BITRATE_OK))
+                return QVariant(QColor(Config.COLOUR_BITRATE_OK))
 
-        return QBrush()
+        return QVariant()
 
     def columnCount(self, parent: QModelIndex = QModelIndex()) -> int:
         """Standard function for view"""
@@ -115,23 +114,7 @@ class QuerylistModel(QAbstractTableModel):
     ) -> QVariant:
         """Return data to view"""
 
-        if (
+        if not index.isValid() or not (0 <= index.row() < len(self.querylist_rows)):
-            not index.isValid()
-            or not (0 <= index.row() < len(self.querylist_rows))
-            or role
-            in [
-                Qt.ItemDataRole.CheckStateRole,
-                Qt.ItemDataRole.DecorationRole,
-                Qt.ItemDataRole.EditRole,
-                Qt.ItemDataRole.FontRole,
-                Qt.ItemDataRole.ForegroundRole,
-                Qt.ItemDataRole.InitialSortOrderRole,
-                Qt.ItemDataRole.SizeHintRole,
-                Qt.ItemDataRole.StatusTipRole,
-                Qt.ItemDataRole.TextAlignmentRole,
-                Qt.ItemDataRole.WhatsThisRole,
-            ]
-        ):
             return QVariant()
 
         row = index.row()
@@ -141,33 +124,48 @@ class QuerylistModel(QAbstractTableModel):
 
         # Dispatch to role-specific functions
         dispatch_table: dict[int, Callable] = {
-            int(Qt.ItemDataRole.BackgroundRole): self._background_role,
+            int(Qt.ItemDataRole.BackgroundRole): self.background_role,
-            int(Qt.ItemDataRole.DisplayRole): self._display_role,
+            int(Qt.ItemDataRole.DisplayRole): self.display_role,
-            int(Qt.ItemDataRole.ToolTipRole): self._tooltip_role,
+            int(Qt.ItemDataRole.ToolTipRole): self.tooltip_role,
         }
 
         if role in dispatch_table:
             return QVariant(dispatch_table[role](row, column, qrow))
 
+        # Document other roles but don't use them
+        if role in [
+            Qt.ItemDataRole.DecorationRole,
+            Qt.ItemDataRole.EditRole,
+            Qt.ItemDataRole.FontRole,
+            Qt.ItemDataRole.ForegroundRole,
+            Qt.ItemDataRole.InitialSortOrderRole,
+            Qt.ItemDataRole.SizeHintRole,
+            Qt.ItemDataRole.StatusTipRole,
+            Qt.ItemDataRole.TextAlignmentRole,
+            Qt.ItemDataRole.ToolTipRole,
+            Qt.ItemDataRole.WhatsThisRole,
+        ]:
+            return QVariant()
+
         # Fall through to no-op
         return QVariant()
 
-    def _display_role(self, row: int, column: int, qrow: QueryRow) -> str:
+    def display_role(self, row: int, column: int, qrow: QueryRow) -> QVariant:
         """
         Return text for display
         """
 
         dispatch_table = {
-            QueryCol.ARTIST.value: qrow.artist,
+            QueryCol.ARTIST.value: QVariant(qrow.artist),
-            QueryCol.BITRATE.value: str(qrow.bitrate),
+            QueryCol.BITRATE.value: QVariant(qrow.bitrate),
-            QueryCol.DURATION.value: ms_to_mmss(qrow.duration),
+            QueryCol.DURATION.value: QVariant(ms_to_mmss(qrow.duration)),
-            QueryCol.LAST_PLAYED.value: get_relative_date(qrow.lastplayed),
+            QueryCol.LAST_PLAYED.value: QVariant(get_relative_date(qrow.lastplayed)),
-            QueryCol.TITLE.value: qrow.title,
+            QueryCol.TITLE.value: QVariant(qrow.title),
         }
         if column in dispatch_table:
             return dispatch_table[column]
 
-        return ""
+        return QVariant()
 
     def flags(self, index: QModelIndex) -> Qt.ItemFlag:
         """
@@ -268,7 +266,7 @@ class QuerylistModel(QAbstractTableModel):
         bottom_right = self.index(row, self.columnCount() - 1)
         self.dataChanged.emit(top_left, bottom_right, [Qt.ItemDataRole.BackgroundRole])
 
-    def _tooltip_role(self, row: int, column: int, rat: RowAndTrack) -> str | QVariant:
+    def tooltip_role(self, row: int, column: int, rat: RowAndTrack) -> QVariant:
         """
         Return tooltip. Currently only used for last_played column.
         """
@@ -280,7 +278,7 @@ class QuerylistModel(QAbstractTableModel):
             if not track_id:
                 return QVariant()
             playdates = Playdates.last_playdates(session, track_id)
-            return (
+            return QVariant(
                 "<br>".join(
                     [
                         a.lastplayed.strftime(Config.LAST_PLAYED_TOOLTIP_DATE_FORMAT)

app/ui/main_window_ui.py

@@ -0,0 +1,850 @@
+# Form implementation generated from reading ui file 'app/ui/main_window.ui'
+#
+# Created by: PyQt6 UI code generator 6.8.1
+#
+# WARNING: Any manual changes made to this file will be lost when pyuic6 is
+# run again.  Do not edit this file unless you know what you are doing.
+
+
+from PyQt6 import QtCore, QtGui, QtWidgets
+
+
+class Ui_MainWindow(object):
+    def setupUi(self, MainWindow):
+        MainWindow.setObjectName("MainWindow")
+        MainWindow.resize(1280, 857)
+        MainWindow.setMinimumSize(QtCore.QSize(1280, 0))
+        icon = QtGui.QIcon()
+        icon.addPixmap(
+            QtGui.QPixmap(":/icons/musicmuster"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        MainWindow.setWindowIcon(icon)
+        MainWindow.setStyleSheet("")
+        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
+        self.centralwidget.setObjectName("centralwidget")
+        self.gridLayout_4 = QtWidgets.QGridLayout(self.centralwidget)
+        self.gridLayout_4.setObjectName("gridLayout_4")
+        self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
+        self.horizontalLayout_3.setObjectName("horizontalLayout_3")
+        self.verticalLayout_3 = QtWidgets.QVBoxLayout()
+        self.verticalLayout_3.setObjectName("verticalLayout_3")
+        self.previous_track_2 = QtWidgets.QLabel(parent=self.centralwidget)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(
+            self.previous_track_2.sizePolicy().hasHeightForWidth()
+        )
+        self.previous_track_2.setSizePolicy(sizePolicy)
+        self.previous_track_2.setMaximumSize(QtCore.QSize(230, 16777215))
+        font = QtGui.QFont()
+        font.setFamily("Sans")
+        font.setPointSize(20)
+        self.previous_track_2.setFont(font)
+        self.previous_track_2.setStyleSheet(
+            "background-color: #f8d7da;\n" "border: 1px solid rgb(85, 87, 83);"
+        )
+        self.previous_track_2.setAlignment(
+            QtCore.Qt.AlignmentFlag.AlignRight
+            | QtCore.Qt.AlignmentFlag.AlignTrailing
+            | QtCore.Qt.AlignmentFlag.AlignVCenter
+        )
+        self.previous_track_2.setObjectName("previous_track_2")
+        self.verticalLayout_3.addWidget(self.previous_track_2)
+        self.current_track_2 = QtWidgets.QLabel(parent=self.centralwidget)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(
+            self.current_track_2.sizePolicy().hasHeightForWidth()
+        )
+        self.current_track_2.setSizePolicy(sizePolicy)
+        self.current_track_2.setMaximumSize(QtCore.QSize(230, 16777215))
+        font = QtGui.QFont()
+        font.setFamily("Sans")
+        font.setPointSize(20)
+        self.current_track_2.setFont(font)
+        self.current_track_2.setStyleSheet(
+            "background-color: #d4edda;\n" "border: 1px solid rgb(85, 87, 83);"
+        )
+        self.current_track_2.setAlignment(
+            QtCore.Qt.AlignmentFlag.AlignRight
+            | QtCore.Qt.AlignmentFlag.AlignTrailing
+            | QtCore.Qt.AlignmentFlag.AlignVCenter
+        )
+        self.current_track_2.setObjectName("current_track_2")
+        self.verticalLayout_3.addWidget(self.current_track_2)
+        self.next_track_2 = QtWidgets.QLabel(parent=self.centralwidget)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.next_track_2.sizePolicy().hasHeightForWidth())
+        self.next_track_2.setSizePolicy(sizePolicy)
+        self.next_track_2.setMaximumSize(QtCore.QSize(230, 16777215))
+        font = QtGui.QFont()
+        font.setFamily("Sans")
+        font.setPointSize(20)
+        self.next_track_2.setFont(font)
+        self.next_track_2.setStyleSheet(
+            "background-color: #fff3cd;\n" "border: 1px solid rgb(85, 87, 83);"
+        )
+        self.next_track_2.setAlignment(
+            QtCore.Qt.AlignmentFlag.AlignRight
+            | QtCore.Qt.AlignmentFlag.AlignTrailing
+            | QtCore.Qt.AlignmentFlag.AlignVCenter
+        )
+        self.next_track_2.setObjectName("next_track_2")
+        self.verticalLayout_3.addWidget(self.next_track_2)
+        self.horizontalLayout_3.addLayout(self.verticalLayout_3)
+        self.verticalLayout = QtWidgets.QVBoxLayout()
+        self.verticalLayout.setObjectName("verticalLayout")
+        self.hdrPreviousTrack = QtWidgets.QLabel(parent=self.centralwidget)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(
+            self.hdrPreviousTrack.sizePolicy().hasHeightForWidth()
+        )
+        self.hdrPreviousTrack.setSizePolicy(sizePolicy)
+        self.hdrPreviousTrack.setMinimumSize(QtCore.QSize(0, 0))
+        self.hdrPreviousTrack.setMaximumSize(QtCore.QSize(16777215, 16777215))
+        font = QtGui.QFont()
+        font.setFamily("Sans")
+        font.setPointSize(20)
+        self.hdrPreviousTrack.setFont(font)
+        self.hdrPreviousTrack.setStyleSheet(
+            "background-color: #f8d7da;\n" "border: 1px solid rgb(85, 87, 83);"
+        )
+        self.hdrPreviousTrack.setText("")
+        self.hdrPreviousTrack.setWordWrap(False)
+        self.hdrPreviousTrack.setObjectName("hdrPreviousTrack")
+        self.verticalLayout.addWidget(self.hdrPreviousTrack)
+        self.hdrCurrentTrack = QtWidgets.QPushButton(parent=self.centralwidget)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(
+            self.hdrCurrentTrack.sizePolicy().hasHeightForWidth()
+        )
+        self.hdrCurrentTrack.setSizePolicy(sizePolicy)
+        font = QtGui.QFont()
+        font.setPointSize(20)
+        self.hdrCurrentTrack.setFont(font)
+        self.hdrCurrentTrack.setStyleSheet(
+            "background-color: #d4edda;\n"
+            "border: 1px solid rgb(85, 87, 83);\n"
+            "text-align: left;\n"
+            "padding-left: 8px;\n"
+            ""
+        )
+        self.hdrCurrentTrack.setText("")
+        self.hdrCurrentTrack.setFlat(True)
+        self.hdrCurrentTrack.setObjectName("hdrCurrentTrack")
+        self.verticalLayout.addWidget(self.hdrCurrentTrack)
+        self.hdrNextTrack = QtWidgets.QPushButton(parent=self.centralwidget)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.hdrNextTrack.sizePolicy().hasHeightForWidth())
+        self.hdrNextTrack.setSizePolicy(sizePolicy)
+        font = QtGui.QFont()
+        font.setPointSize(20)
+        self.hdrNextTrack.setFont(font)
+        self.hdrNextTrack.setStyleSheet(
+            "background-color: #fff3cd;\n"
+            "border: 1px solid rgb(85, 87, 83);\n"
+            "text-align: left;\n"
+            "padding-left: 8px;"
+        )
+        self.hdrNextTrack.setText("")
+        self.hdrNextTrack.setFlat(True)
+        self.hdrNextTrack.setObjectName("hdrNextTrack")
+        self.verticalLayout.addWidget(self.hdrNextTrack)
+        self.horizontalLayout_3.addLayout(self.verticalLayout)
+        self.frame_2 = QtWidgets.QFrame(parent=self.centralwidget)
+        self.frame_2.setMinimumSize(QtCore.QSize(0, 131))
+        self.frame_2.setMaximumSize(QtCore.QSize(230, 131))
+        self.frame_2.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_2.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_2.setObjectName("frame_2")
+        self.verticalLayout_10 = QtWidgets.QVBoxLayout(self.frame_2)
+        self.verticalLayout_10.setObjectName("verticalLayout_10")
+        self.lblTOD = QtWidgets.QLabel(parent=self.frame_2)
+        self.lblTOD.setMinimumSize(QtCore.QSize(208, 0))
+        font = QtGui.QFont()
+        font.setPointSize(35)
+        self.lblTOD.setFont(font)
+        self.lblTOD.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.lblTOD.setObjectName("lblTOD")
+        self.verticalLayout_10.addWidget(self.lblTOD)
+        self.label_elapsed_timer = QtWidgets.QLabel(parent=self.frame_2)
+        font = QtGui.QFont()
+        font.setFamily("FreeSans")
+        font.setPointSize(18)
+        font.setBold(False)
+        font.setWeight(50)
+        self.label_elapsed_timer.setFont(font)
+        self.label_elapsed_timer.setStyleSheet("color: black;")
+        self.label_elapsed_timer.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_elapsed_timer.setObjectName("label_elapsed_timer")
+        self.verticalLayout_10.addWidget(self.label_elapsed_timer)
+        self.horizontalLayout_3.addWidget(self.frame_2)
+        self.gridLayout_4.addLayout(self.horizontalLayout_3, 0, 0, 1, 1)
+        self.frame_4 = QtWidgets.QFrame(parent=self.centralwidget)
+        self.frame_4.setMinimumSize(QtCore.QSize(0, 16))
+        self.frame_4.setAutoFillBackground(False)
+        self.frame_4.setStyleSheet("background-color: rgb(154, 153, 150)")
+        self.frame_4.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_4.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_4.setObjectName("frame_4")
+        self.gridLayout_4.addWidget(self.frame_4, 1, 0, 1, 1)
+        self.cartsWidget = QtWidgets.QWidget(parent=self.centralwidget)
+        self.cartsWidget.setObjectName("cartsWidget")
+        self.horizontalLayout_Carts = QtWidgets.QHBoxLayout(self.cartsWidget)
+        self.horizontalLayout_Carts.setObjectName("horizontalLayout_Carts")
+        spacerItem = QtWidgets.QSpacerItem(
+            40,
+            20,
+            QtWidgets.QSizePolicy.Policy.Expanding,
+            QtWidgets.QSizePolicy.Policy.Minimum,
+        )
+        self.horizontalLayout_Carts.addItem(spacerItem)
+        self.gridLayout_4.addWidget(self.cartsWidget, 2, 0, 1, 1)
+        self.frame_6 = QtWidgets.QFrame(parent=self.centralwidget)
+        self.frame_6.setMinimumSize(QtCore.QSize(0, 16))
+        self.frame_6.setAutoFillBackground(False)
+        self.frame_6.setStyleSheet("background-color: rgb(154, 153, 150)")
+        self.frame_6.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_6.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_6.setObjectName("frame_6")
+        self.gridLayout_4.addWidget(self.frame_6, 3, 0, 1, 1)
+        self.splitter = QtWidgets.QSplitter(parent=self.centralwidget)
+        self.splitter.setOrientation(QtCore.Qt.Orientation.Vertical)
+        self.splitter.setObjectName("splitter")
+        self.tabPlaylist = QtWidgets.QTabWidget(parent=self.splitter)
+        self.tabPlaylist.setDocumentMode(False)
+        self.tabPlaylist.setTabsClosable(True)
+        self.tabPlaylist.setMovable(True)
+        self.tabPlaylist.setObjectName("tabPlaylist")
+        self.tabInfolist = InfoTabs(parent=self.splitter)
+        self.tabInfolist.setDocumentMode(False)
+        self.tabInfolist.setTabsClosable(True)
+        self.tabInfolist.setMovable(True)
+        self.tabInfolist.setTabBarAutoHide(False)
+        self.tabInfolist.setObjectName("tabInfolist")
+        self.gridLayout_4.addWidget(self.splitter, 4, 0, 1, 1)
+        self.InfoFooterFrame = QtWidgets.QFrame(parent=self.centralwidget)
+        self.InfoFooterFrame.setMaximumSize(QtCore.QSize(16777215, 16777215))
+        self.InfoFooterFrame.setStyleSheet("background-color: rgb(192, 191, 188)")
+        self.InfoFooterFrame.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.InfoFooterFrame.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.InfoFooterFrame.setObjectName("InfoFooterFrame")
+        self.horizontalLayout = QtWidgets.QHBoxLayout(self.InfoFooterFrame)
+        self.horizontalLayout.setObjectName("horizontalLayout")
+        self.FadeStopInfoFrame = QtWidgets.QFrame(parent=self.InfoFooterFrame)
+        self.FadeStopInfoFrame.setMinimumSize(QtCore.QSize(152, 112))
+        self.FadeStopInfoFrame.setMaximumSize(QtCore.QSize(184, 16777215))
+        self.FadeStopInfoFrame.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.FadeStopInfoFrame.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.FadeStopInfoFrame.setObjectName("FadeStopInfoFrame")
+        self.verticalLayout_4 = QtWidgets.QVBoxLayout(self.FadeStopInfoFrame)
+        self.verticalLayout_4.setObjectName("verticalLayout_4")
+        self.btnPreview = QtWidgets.QPushButton(parent=self.FadeStopInfoFrame)
+        self.btnPreview.setMinimumSize(QtCore.QSize(132, 41))
+        icon1 = QtGui.QIcon()
+        icon1.addPixmap(
+            QtGui.QPixmap(":/icons/headphones"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.btnPreview.setIcon(icon1)
+        self.btnPreview.setIconSize(QtCore.QSize(30, 30))
+        self.btnPreview.setCheckable(True)
+        self.btnPreview.setObjectName("btnPreview")
+        self.verticalLayout_4.addWidget(self.btnPreview)
+        self.groupBoxIntroControls = QtWidgets.QGroupBox(parent=self.FadeStopInfoFrame)
+        self.groupBoxIntroControls.setMinimumSize(QtCore.QSize(132, 46))
+        self.groupBoxIntroControls.setMaximumSize(QtCore.QSize(132, 46))
+        self.groupBoxIntroControls.setTitle("")
+        self.groupBoxIntroControls.setObjectName("groupBoxIntroControls")
+        self.btnPreviewStart = QtWidgets.QPushButton(parent=self.groupBoxIntroControls)
+        self.btnPreviewStart.setGeometry(QtCore.QRect(0, 0, 44, 23))
+        self.btnPreviewStart.setMinimumSize(QtCore.QSize(44, 23))
+        self.btnPreviewStart.setMaximumSize(QtCore.QSize(44, 23))
+        self.btnPreviewStart.setObjectName("btnPreviewStart")
+        self.btnPreviewArm = QtWidgets.QPushButton(parent=self.groupBoxIntroControls)
+        self.btnPreviewArm.setGeometry(QtCore.QRect(44, 0, 44, 23))
+        self.btnPreviewArm.setMinimumSize(QtCore.QSize(44, 23))
+        self.btnPreviewArm.setMaximumSize(QtCore.QSize(44, 23))
+        self.btnPreviewArm.setText("")
+        icon2 = QtGui.QIcon()
+        icon2.addPixmap(
+            QtGui.QPixmap(":/icons/record-button.png"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        icon2.addPixmap(
+            QtGui.QPixmap(":/icons/record-red-button.png"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.On,
+        )
+        self.btnPreviewArm.setIcon(icon2)
+        self.btnPreviewArm.setCheckable(True)
+        self.btnPreviewArm.setObjectName("btnPreviewArm")
+        self.btnPreviewEnd = QtWidgets.QPushButton(parent=self.groupBoxIntroControls)
+        self.btnPreviewEnd.setGeometry(QtCore.QRect(88, 0, 44, 23))
+        self.btnPreviewEnd.setMinimumSize(QtCore.QSize(44, 23))
+        self.btnPreviewEnd.setMaximumSize(QtCore.QSize(44, 23))
+        self.btnPreviewEnd.setObjectName("btnPreviewEnd")
+        self.btnPreviewBack = QtWidgets.QPushButton(parent=self.groupBoxIntroControls)
+        self.btnPreviewBack.setGeometry(QtCore.QRect(0, 23, 44, 23))
+        self.btnPreviewBack.setMinimumSize(QtCore.QSize(44, 23))
+        self.btnPreviewBack.setMaximumSize(QtCore.QSize(44, 23))
+        self.btnPreviewBack.setObjectName("btnPreviewBack")
+        self.btnPreviewMark = QtWidgets.QPushButton(parent=self.groupBoxIntroControls)
+        self.btnPreviewMark.setEnabled(False)
+        self.btnPreviewMark.setGeometry(QtCore.QRect(44, 23, 44, 23))
+        self.btnPreviewMark.setMinimumSize(QtCore.QSize(44, 23))
+        self.btnPreviewMark.setMaximumSize(QtCore.QSize(44, 23))
+        self.btnPreviewMark.setText("")
+        icon3 = QtGui.QIcon()
+        icon3.addPixmap(
+            QtGui.QPixmap(":/icons/star.png"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.On,
+        )
+        icon3.addPixmap(
+            QtGui.QPixmap(":/icons/star_empty.png"),
+            QtGui.QIcon.Mode.Disabled,
+            QtGui.QIcon.State.Off,
+        )
+        self.btnPreviewMark.setIcon(icon3)
+        self.btnPreviewMark.setObjectName("btnPreviewMark")
+        self.btnPreviewFwd = QtWidgets.QPushButton(parent=self.groupBoxIntroControls)
+        self.btnPreviewFwd.setGeometry(QtCore.QRect(88, 23, 44, 23))
+        self.btnPreviewFwd.setMinimumSize(QtCore.QSize(44, 23))
+        self.btnPreviewFwd.setMaximumSize(QtCore.QSize(44, 23))
+        self.btnPreviewFwd.setObjectName("btnPreviewFwd")
+        self.verticalLayout_4.addWidget(self.groupBoxIntroControls)
+        self.horizontalLayout.addWidget(self.FadeStopInfoFrame)
+        self.frame_intro = QtWidgets.QFrame(parent=self.InfoFooterFrame)
+        self.frame_intro.setMinimumSize(QtCore.QSize(152, 112))
+        self.frame_intro.setStyleSheet("")
+        self.frame_intro.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_intro.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_intro.setObjectName("frame_intro")
+        self.verticalLayout_9 = QtWidgets.QVBoxLayout(self.frame_intro)
+        self.verticalLayout_9.setObjectName("verticalLayout_9")
+        self.label_7 = QtWidgets.QLabel(parent=self.frame_intro)
+        self.label_7.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_7.setObjectName("label_7")
+        self.verticalLayout_9.addWidget(self.label_7)
+        self.label_intro_timer = QtWidgets.QLabel(parent=self.frame_intro)
+        font = QtGui.QFont()
+        font.setFamily("FreeSans")
+        font.setPointSize(40)
+        font.setBold(False)
+        font.setWeight(50)
+        self.label_intro_timer.setFont(font)
+        self.label_intro_timer.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_intro_timer.setObjectName("label_intro_timer")
+        self.verticalLayout_9.addWidget(self.label_intro_timer)
+        self.horizontalLayout.addWidget(self.frame_intro)
+        self.frame_toggleplayed_3db = QtWidgets.QFrame(parent=self.InfoFooterFrame)
+        self.frame_toggleplayed_3db.setMinimumSize(QtCore.QSize(152, 112))
+        self.frame_toggleplayed_3db.setMaximumSize(QtCore.QSize(184, 16777215))
+        self.frame_toggleplayed_3db.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_toggleplayed_3db.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_toggleplayed_3db.setObjectName("frame_toggleplayed_3db")
+        self.verticalLayout_6 = QtWidgets.QVBoxLayout(self.frame_toggleplayed_3db)
+        self.verticalLayout_6.setObjectName("verticalLayout_6")
+        self.btnDrop3db = QtWidgets.QPushButton(parent=self.frame_toggleplayed_3db)
+        self.btnDrop3db.setMinimumSize(QtCore.QSize(132, 41))
+        self.btnDrop3db.setMaximumSize(QtCore.QSize(164, 16777215))
+        self.btnDrop3db.setCheckable(True)
+        self.btnDrop3db.setObjectName("btnDrop3db")
+        self.verticalLayout_6.addWidget(self.btnDrop3db)
+        self.btnHidePlayed = QtWidgets.QPushButton(parent=self.frame_toggleplayed_3db)
+        self.btnHidePlayed.setMinimumSize(QtCore.QSize(132, 41))
+        self.btnHidePlayed.setMaximumSize(QtCore.QSize(164, 16777215))
+        self.btnHidePlayed.setCheckable(True)
+        self.btnHidePlayed.setObjectName("btnHidePlayed")
+        self.verticalLayout_6.addWidget(self.btnHidePlayed)
+        self.horizontalLayout.addWidget(self.frame_toggleplayed_3db)
+        self.frame_fade = QtWidgets.QFrame(parent=self.InfoFooterFrame)
+        self.frame_fade.setMinimumSize(QtCore.QSize(152, 112))
+        self.frame_fade.setStyleSheet("")
+        self.frame_fade.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_fade.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_fade.setObjectName("frame_fade")
+        self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.frame_fade)
+        self.verticalLayout_2.setObjectName("verticalLayout_2")
+        self.label_4 = QtWidgets.QLabel(parent=self.frame_fade)
+        self.label_4.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_4.setObjectName("label_4")
+        self.verticalLayout_2.addWidget(self.label_4)
+        self.label_fade_timer = QtWidgets.QLabel(parent=self.frame_fade)
+        font = QtGui.QFont()
+        font.setFamily("FreeSans")
+        font.setPointSize(40)
+        font.setBold(False)
+        font.setWeight(50)
+        self.label_fade_timer.setFont(font)
+        self.label_fade_timer.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_fade_timer.setObjectName("label_fade_timer")
+        self.verticalLayout_2.addWidget(self.label_fade_timer)
+        self.horizontalLayout.addWidget(self.frame_fade)
+        self.frame_silent = QtWidgets.QFrame(parent=self.InfoFooterFrame)
+        self.frame_silent.setMinimumSize(QtCore.QSize(152, 112))
+        self.frame_silent.setStyleSheet("")
+        self.frame_silent.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame_silent.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame_silent.setObjectName("frame_silent")
+        self.verticalLayout_7 = QtWidgets.QVBoxLayout(self.frame_silent)
+        self.verticalLayout_7.setObjectName("verticalLayout_7")
+        self.label_5 = QtWidgets.QLabel(parent=self.frame_silent)
+        self.label_5.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_5.setObjectName("label_5")
+        self.verticalLayout_7.addWidget(self.label_5)
+        self.label_silent_timer = QtWidgets.QLabel(parent=self.frame_silent)
+        font = QtGui.QFont()
+        font.setFamily("FreeSans")
+        font.setPointSize(40)
+        font.setBold(False)
+        font.setWeight(50)
+        self.label_silent_timer.setFont(font)
+        self.label_silent_timer.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.label_silent_timer.setObjectName("label_silent_timer")
+        self.verticalLayout_7.addWidget(self.label_silent_timer)
+        self.horizontalLayout.addWidget(self.frame_silent)
+        self.widgetFadeVolume = PlotWidget(parent=self.InfoFooterFrame)
+        sizePolicy = QtWidgets.QSizePolicy(
+            QtWidgets.QSizePolicy.Policy.Preferred,
+            QtWidgets.QSizePolicy.Policy.Preferred,
+        )
+        sizePolicy.setHorizontalStretch(1)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(
+            self.widgetFadeVolume.sizePolicy().hasHeightForWidth()
+        )
+        self.widgetFadeVolume.setSizePolicy(sizePolicy)
+        self.widgetFadeVolume.setMinimumSize(QtCore.QSize(0, 0))
+        self.widgetFadeVolume.setObjectName("widgetFadeVolume")
+        self.horizontalLayout.addWidget(self.widgetFadeVolume)
+        self.frame = QtWidgets.QFrame(parent=self.InfoFooterFrame)
+        self.frame.setMinimumSize(QtCore.QSize(151, 0))
+        self.frame.setMaximumSize(QtCore.QSize(151, 112))
+        self.frame.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame.setObjectName("frame")
+        self.verticalLayout_5 = QtWidgets.QVBoxLayout(self.frame)
+        self.verticalLayout_5.setObjectName("verticalLayout_5")
+        self.btnFade = QtWidgets.QPushButton(parent=self.frame)
+        self.btnFade.setMinimumSize(QtCore.QSize(132, 32))
+        self.btnFade.setMaximumSize(QtCore.QSize(164, 16777215))
+        icon4 = QtGui.QIcon()
+        icon4.addPixmap(
+            QtGui.QPixmap(":/icons/fade"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.btnFade.setIcon(icon4)
+        self.btnFade.setIconSize(QtCore.QSize(30, 30))
+        self.btnFade.setObjectName("btnFade")
+        self.verticalLayout_5.addWidget(self.btnFade)
+        self.btnStop = QtWidgets.QPushButton(parent=self.frame)
+        self.btnStop.setMinimumSize(QtCore.QSize(0, 36))
+        icon5 = QtGui.QIcon()
+        icon5.addPixmap(
+            QtGui.QPixmap(":/icons/stopsign"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.btnStop.setIcon(icon5)
+        self.btnStop.setObjectName("btnStop")
+        self.verticalLayout_5.addWidget(self.btnStop)
+        self.horizontalLayout.addWidget(self.frame)
+        self.gridLayout_4.addWidget(self.InfoFooterFrame, 5, 0, 1, 1)
+        MainWindow.setCentralWidget(self.centralwidget)
+        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
+        self.menubar.setGeometry(QtCore.QRect(0, 0, 1280, 29))
+        self.menubar.setObjectName("menubar")
+        self.menuFile = QtWidgets.QMenu(parent=self.menubar)
+        self.menuFile.setObjectName("menuFile")
+        self.menuPlaylist = QtWidgets.QMenu(parent=self.menubar)
+        self.menuPlaylist.setObjectName("menuPlaylist")
+        self.menuSearc_h = QtWidgets.QMenu(parent=self.menubar)
+        self.menuSearc_h.setObjectName("menuSearc_h")
+        self.menuHelp = QtWidgets.QMenu(parent=self.menubar)
+        self.menuHelp.setObjectName("menuHelp")
+        MainWindow.setMenuBar(self.menubar)
+        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
+        self.statusbar.setEnabled(True)
+        self.statusbar.setStyleSheet("background-color: rgb(211, 215, 207);")
+        self.statusbar.setObjectName("statusbar")
+        MainWindow.setStatusBar(self.statusbar)
+        self.actionPlay_next = QtGui.QAction(parent=MainWindow)
+        icon6 = QtGui.QIcon()
+        icon6.addPixmap(
+            QtGui.QPixmap("app/ui/../../../../../../.designer/backup/icon-play.png"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.actionPlay_next.setIcon(icon6)
+        self.actionPlay_next.setObjectName("actionPlay_next")
+        self.actionSkipToNext = QtGui.QAction(parent=MainWindow)
+        icon7 = QtGui.QIcon()
+        icon7.addPixmap(
+            QtGui.QPixmap(":/icons/next"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.actionSkipToNext.setIcon(icon7)
+        self.actionSkipToNext.setObjectName("actionSkipToNext")
+        self.actionInsertTrack = QtGui.QAction(parent=MainWindow)
+        icon8 = QtGui.QIcon()
+        icon8.addPixmap(
+            QtGui.QPixmap(
+                "app/ui/../../../../../../.designer/backup/icon_search_database.png"
+            ),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.actionInsertTrack.setIcon(icon8)
+        self.actionInsertTrack.setObjectName("actionInsertTrack")
+        self.actionAdd_file = QtGui.QAction(parent=MainWindow)
+        icon9 = QtGui.QIcon()
+        icon9.addPixmap(
+            QtGui.QPixmap(
+                "app/ui/../../../../../../.designer/backup/icon_open_file.png"
+            ),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.actionAdd_file.setIcon(icon9)
+        self.actionAdd_file.setObjectName("actionAdd_file")
+        self.actionFade = QtGui.QAction(parent=MainWindow)
+        icon10 = QtGui.QIcon()
+        icon10.addPixmap(
+            QtGui.QPixmap("app/ui/../../../../../../.designer/backup/icon-fade.png"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.actionFade.setIcon(icon10)
+        self.actionFade.setObjectName("actionFade")
+        self.actionStop = QtGui.QAction(parent=MainWindow)
+        icon11 = QtGui.QIcon()
+        icon11.addPixmap(
+            QtGui.QPixmap(":/icons/stop"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.actionStop.setIcon(icon11)
+        self.actionStop.setObjectName("actionStop")
+        self.action_Clear_selection = QtGui.QAction(parent=MainWindow)
+        self.action_Clear_selection.setObjectName("action_Clear_selection")
+        self.action_Resume_previous = QtGui.QAction(parent=MainWindow)
+        icon12 = QtGui.QIcon()
+        icon12.addPixmap(
+            QtGui.QPixmap(":/icons/previous"),
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
+        )
+        self.action_Resume_previous.setIcon(icon12)
+        self.action_Resume_previous.setObjectName("action_Resume_previous")
+        self.actionE_xit = QtGui.QAction(parent=MainWindow)
+        self.actionE_xit.setObjectName("actionE_xit")
+        self.actionTest = QtGui.QAction(parent=MainWindow)
+        self.actionTest.setObjectName("actionTest")
+        self.actionOpenPlaylist = QtGui.QAction(parent=MainWindow)
+        self.actionOpenPlaylist.setObjectName("actionOpenPlaylist")
+        self.actionNewPlaylist = QtGui.QAction(parent=MainWindow)
+        self.actionNewPlaylist.setObjectName("actionNewPlaylist")
+        self.actionTestFunction = QtGui.QAction(parent=MainWindow)
+        self.actionTestFunction.setObjectName("actionTestFunction")
+        self.actionSkipToFade = QtGui.QAction(parent=MainWindow)
+        self.actionSkipToFade.setObjectName("actionSkipToFade")
+        self.actionSkipToEnd = QtGui.QAction(parent=MainWindow)
+        self.actionSkipToEnd.setObjectName("actionSkipToEnd")
+        self.actionClosePlaylist = QtGui.QAction(parent=MainWindow)
+        self.actionClosePlaylist.setEnabled(True)
+        self.actionClosePlaylist.setObjectName("actionClosePlaylist")
+        self.actionRenamePlaylist = QtGui.QAction(parent=MainWindow)
+        self.actionRenamePlaylist.setEnabled(True)
+        self.actionRenamePlaylist.setObjectName("actionRenamePlaylist")
+        self.actionDeletePlaylist = QtGui.QAction(parent=MainWindow)
+        self.actionDeletePlaylist.setEnabled(True)
+        self.actionDeletePlaylist.setObjectName("actionDeletePlaylist")
+        self.actionMoveSelected = QtGui.QAction(parent=MainWindow)
+        self.actionMoveSelected.setObjectName("actionMoveSelected")
+        self.actionExport_playlist = QtGui.QAction(parent=MainWindow)
+        self.actionExport_playlist.setObjectName("actionExport_playlist")
+        self.actionSetNext = QtGui.QAction(parent=MainWindow)
+        self.actionSetNext.setObjectName("actionSetNext")
+        self.actionSelect_next_track = QtGui.QAction(parent=MainWindow)
+        self.actionSelect_next_track.setObjectName("actionSelect_next_track")
+        self.actionSelect_previous_track = QtGui.QAction(parent=MainWindow)
+        self.actionSelect_previous_track.setObjectName("actionSelect_previous_track")
+        self.actionSelect_played_tracks = QtGui.QAction(parent=MainWindow)
+        self.actionSelect_played_tracks.setObjectName("actionSelect_played_tracks")
+        self.actionMoveUnplayed = QtGui.QAction(parent=MainWindow)
+        self.actionMoveUnplayed.setObjectName("actionMoveUnplayed")
+        self.actionAdd_note = QtGui.QAction(parent=MainWindow)
+        self.actionAdd_note.setObjectName("actionAdd_note")
+        self.actionEnable_controls = QtGui.QAction(parent=MainWindow)
+        self.actionEnable_controls.setObjectName("actionEnable_controls")
+        self.actionImport = QtGui.QAction(parent=MainWindow)
+        self.actionImport.setObjectName("actionImport")
+        self.actionDownload_CSV_of_played_tracks = QtGui.QAction(parent=MainWindow)
+        self.actionDownload_CSV_of_played_tracks.setObjectName(
+            "actionDownload_CSV_of_played_tracks"
+        )
+        self.actionSearch = QtGui.QAction(parent=MainWindow)
+        self.actionSearch.setObjectName("actionSearch")
+        self.actionInsertSectionHeader = QtGui.QAction(parent=MainWindow)
+        self.actionInsertSectionHeader.setObjectName("actionInsertSectionHeader")
+        self.actionRemove = QtGui.QAction(parent=MainWindow)
+        self.actionRemove.setObjectName("actionRemove")
+        self.actionFind_next = QtGui.QAction(parent=MainWindow)
+        self.actionFind_next.setObjectName("actionFind_next")
+        self.actionFind_previous = QtGui.QAction(parent=MainWindow)
+        self.actionFind_previous.setObjectName("actionFind_previous")
+        self.action_About = QtGui.QAction(parent=MainWindow)
+        self.action_About.setObjectName("action_About")
+        self.actionSave_as_template = QtGui.QAction(parent=MainWindow)
+        self.actionSave_as_template.setObjectName("actionSave_as_template")
+        self.actionManage_templates = QtGui.QAction(parent=MainWindow)
+        self.actionManage_templates.setObjectName("actionManage_templates")
+        self.actionDebug = QtGui.QAction(parent=MainWindow)
+        self.actionDebug.setObjectName("actionDebug")
+        self.actionAdd_cart = QtGui.QAction(parent=MainWindow)
+        self.actionAdd_cart.setObjectName("actionAdd_cart")
+        self.actionMark_for_moving = QtGui.QAction(parent=MainWindow)
+        self.actionMark_for_moving.setObjectName("actionMark_for_moving")
+        self.actionPaste = QtGui.QAction(parent=MainWindow)
+        self.actionPaste.setObjectName("actionPaste")
+        self.actionResume = QtGui.QAction(parent=MainWindow)
+        self.actionResume.setObjectName("actionResume")
+        self.actionSearch_title_in_Wikipedia = QtGui.QAction(parent=MainWindow)
+        self.actionSearch_title_in_Wikipedia.setObjectName(
+            "actionSearch_title_in_Wikipedia"
+        )
+        self.actionSearch_title_in_Songfacts = QtGui.QAction(parent=MainWindow)
+        self.actionSearch_title_in_Songfacts.setObjectName(
+            "actionSearch_title_in_Songfacts"
+        )
+        self.actionSelect_duplicate_rows = QtGui.QAction(parent=MainWindow)
+        self.actionSelect_duplicate_rows.setObjectName("actionSelect_duplicate_rows")
+        self.actionImport_files = QtGui.QAction(parent=MainWindow)
+        self.actionImport_files.setObjectName("actionImport_files")
+        self.actionOpenQuerylist = QtGui.QAction(parent=MainWindow)
+        self.actionOpenQuerylist.setObjectName("actionOpenQuerylist")
+        self.actionManage_querylists = QtGui.QAction(parent=MainWindow)
+        self.actionManage_querylists.setObjectName("actionManage_querylists")
+        self.menuFile.addSeparator()
+        self.menuFile.addAction(self.actionInsertTrack)
+        self.menuFile.addAction(self.actionRemove)
+        self.menuFile.addAction(self.actionInsertSectionHeader)
+        self.menuFile.addSeparator()
+        self.menuFile.addAction(self.actionMark_for_moving)
+        self.menuFile.addAction(self.actionPaste)
+        self.menuFile.addSeparator()
+        self.menuFile.addAction(self.actionExport_playlist)
+        self.menuFile.addAction(self.actionDownload_CSV_of_played_tracks)
+        self.menuFile.addSeparator()
+        self.menuFile.addAction(self.actionSelect_duplicate_rows)
+        self.menuFile.addAction(self.actionMoveSelected)
+        self.menuFile.addAction(self.actionMoveUnplayed)
+        self.menuFile.addAction(self.action_Clear_selection)
+        self.menuPlaylist.addSeparator()
+        self.menuPlaylist.addSeparator()
+        self.menuPlaylist.addAction(self.actionOpenPlaylist)
+        self.menuPlaylist.addAction(self.actionNewPlaylist)
+        self.menuPlaylist.addAction(self.actionClosePlaylist)
+        self.menuPlaylist.addAction(self.actionRenamePlaylist)
+        self.menuPlaylist.addAction(self.actionDeletePlaylist)
+        self.menuPlaylist.addSeparator()
+        self.menuPlaylist.addAction(self.actionOpenQuerylist)
+        self.menuPlaylist.addAction(self.actionManage_querylists)
+        self.menuPlaylist.addSeparator()
+        self.menuPlaylist.addAction(self.actionSave_as_template)
+        self.menuPlaylist.addAction(self.actionManage_templates)
+        self.menuPlaylist.addSeparator()
+        self.menuPlaylist.addAction(self.actionImport_files)
+        self.menuPlaylist.addSeparator()
+        self.menuPlaylist.addAction(self.actionE_xit)
+        self.menuSearc_h.addAction(self.actionSetNext)
+        self.menuSearc_h.addAction(self.actionPlay_next)
+        self.menuSearc_h.addAction(self.actionFade)
+        self.menuSearc_h.addAction(self.actionStop)
+        self.menuSearc_h.addAction(self.actionResume)
+        self.menuSearc_h.addAction(self.actionSkipToNext)
+        self.menuSearc_h.addSeparator()
+        self.menuSearc_h.addAction(self.actionSearch)
+        self.menuSearc_h.addAction(self.actionSearch_title_in_Wikipedia)
+        self.menuSearc_h.addAction(self.actionSearch_title_in_Songfacts)
+        self.menuHelp.addAction(self.action_About)
+        self.menuHelp.addAction(self.actionDebug)
+        self.menubar.addAction(self.menuPlaylist.menuAction())
+        self.menubar.addAction(self.menuFile.menuAction())
+        self.menubar.addAction(self.menuSearc_h.menuAction())
+        self.menubar.addAction(self.menuHelp.menuAction())
+
+        self.retranslateUi(MainWindow)
+        self.tabPlaylist.setCurrentIndex(-1)
+        self.tabInfolist.setCurrentIndex(-1)
+        self.actionE_xit.triggered.connect(MainWindow.close)  # type: ignore
+        QtCore.QMetaObject.connectSlotsByName(MainWindow)
+
+    def retranslateUi(self, MainWindow):
+        _translate = QtCore.QCoreApplication.translate
+        MainWindow.setWindowTitle(_translate("MainWindow", "Music Muster"))
+        self.previous_track_2.setText(_translate("MainWindow", "Last track:"))
+        self.current_track_2.setText(_translate("MainWindow", "Current track:"))
+        self.next_track_2.setText(_translate("MainWindow", "Next track:"))
+        self.lblTOD.setText(_translate("MainWindow", "00:00:00"))
+        self.label_elapsed_timer.setText(_translate("MainWindow", "00:00 / 00:00"))
+        self.btnPreview.setText(_translate("MainWindow", "  Preview"))
+        self.btnPreviewStart.setText(_translate("MainWindow", "<<"))
+        self.btnPreviewEnd.setText(_translate("MainWindow", ">>"))
+        self.btnPreviewBack.setText(_translate("MainWindow", "<"))
+        self.btnPreviewFwd.setText(_translate("MainWindow", ">"))
+        self.label_7.setText(_translate("MainWindow", "Intro"))
+        self.label_intro_timer.setText(_translate("MainWindow", "0:0"))
+        self.btnDrop3db.setText(_translate("MainWindow", "-3dB to talk"))
+        self.btnHidePlayed.setText(_translate("MainWindow", "Hide played"))
+        self.label_4.setText(_translate("MainWindow", "Fade"))
+        self.label_fade_timer.setText(_translate("MainWindow", "00:00"))
+        self.label_5.setText(_translate("MainWindow", "Silent"))
+        self.label_silent_timer.setText(_translate("MainWindow", "00:00"))
+        self.btnFade.setText(_translate("MainWindow", "  Fade"))
+        self.btnStop.setText(_translate("MainWindow", "  Stop"))
+        self.menuFile.setTitle(_translate("MainWindow", "&Playlist"))
+        self.menuPlaylist.setTitle(_translate("MainWindow", "&File"))
+        self.menuSearc_h.setTitle(_translate("MainWindow", "&Music"))
+        self.menuHelp.setTitle(_translate("MainWindow", "Help"))
+        self.actionPlay_next.setText(_translate("MainWindow", "&Play next"))
+        self.actionPlay_next.setShortcut(_translate("MainWindow", "Return"))
+        self.actionSkipToNext.setText(_translate("MainWindow", "Skip to &next"))
+        self.actionSkipToNext.setShortcut(_translate("MainWindow", "Ctrl+Alt+Return"))
+        self.actionInsertTrack.setText(_translate("MainWindow", "Insert &track..."))
+        self.actionInsertTrack.setShortcut(_translate("MainWindow", "Ctrl+T"))
+        self.actionAdd_file.setText(_translate("MainWindow", "Add &file"))
+        self.actionAdd_file.setShortcut(_translate("MainWindow", "Ctrl+F"))
+        self.actionFade.setText(_translate("MainWindow", "F&ade"))
+        self.actionFade.setShortcut(_translate("MainWindow", "Ctrl+Z"))
+        self.actionStop.setText(_translate("MainWindow", "S&top"))
+        self.actionStop.setShortcut(_translate("MainWindow", "Ctrl+Alt+S"))
+        self.action_Clear_selection.setText(
+            _translate("MainWindow", "Clear &selection")
+        )
+        self.action_Clear_selection.setShortcut(_translate("MainWindow", "Esc"))
+        self.action_Resume_previous.setText(
+            _translate("MainWindow", "&Resume previous")
+        )
+        self.actionE_xit.setText(_translate("MainWindow", "E&xit"))
+        self.actionTest.setText(_translate("MainWindow", "&Test"))
+        self.actionOpenPlaylist.setText(_translate("MainWindow", "O&pen..."))
+        self.actionNewPlaylist.setText(_translate("MainWindow", "&New..."))
+        self.actionTestFunction.setText(_translate("MainWindow", "&Test function"))
+        self.actionSkipToFade.setText(
+            _translate("MainWindow", "&Skip to start of fade")
+        )
+        self.actionSkipToEnd.setText(_translate("MainWindow", "Skip to &end of track"))
+        self.actionClosePlaylist.setText(_translate("MainWindow", "&Close"))
+        self.actionRenamePlaylist.setText(_translate("MainWindow", "&Rename..."))
+        self.actionDeletePlaylist.setText(_translate("MainWindow", "Dele&te..."))
+        self.actionMoveSelected.setText(
+            _translate("MainWindow", "Mo&ve selected tracks to...")
+        )
+        self.actionExport_playlist.setText(_translate("MainWindow", "E&xport..."))
+        self.actionSetNext.setText(_translate("MainWindow", "Set &next"))
+        self.actionSetNext.setShortcut(_translate("MainWindow", "Ctrl+N"))
+        self.actionSelect_next_track.setText(
+            _translate("MainWindow", "Select next track")
+        )
+        self.actionSelect_next_track.setShortcut(_translate("MainWindow", "J"))
+        self.actionSelect_previous_track.setText(
+            _translate("MainWindow", "Select previous track")
+        )
+        self.actionSelect_previous_track.setShortcut(_translate("MainWindow", "K"))
+        self.actionSelect_played_tracks.setText(
+            _translate("MainWindow", "Select played tracks")
+        )
+        self.actionMoveUnplayed.setText(
+            _translate("MainWindow", "Move &unplayed tracks to...")
+        )
+        self.actionAdd_note.setText(_translate("MainWindow", "Add note..."))
+        self.actionAdd_note.setShortcut(_translate("MainWindow", "Ctrl+T"))
+        self.actionEnable_controls.setText(_translate("MainWindow", "Enable controls"))
+        self.actionImport.setText(_translate("MainWindow", "Import track..."))
+        self.actionImport.setShortcut(_translate("MainWindow", "Ctrl+Shift+I"))
+        self.actionDownload_CSV_of_played_tracks.setText(
+            _translate("MainWindow", "Download CSV of played tracks...")
+        )
+        self.actionSearch.setText(_translate("MainWindow", "Search..."))
+        self.actionSearch.setShortcut(_translate("MainWindow", "/"))
+        self.actionInsertSectionHeader.setText(
+            _translate("MainWindow", "Insert &section header...")
+        )
+        self.actionInsertSectionHeader.setShortcut(_translate("MainWindow", "Ctrl+H"))
+        self.actionRemove.setText(_translate("MainWindow", "&Remove track"))
+        self.actionFind_next.setText(_translate("MainWindow", "Find next"))
+        self.actionFind_next.setShortcut(_translate("MainWindow", "N"))
+        self.actionFind_previous.setText(_translate("MainWindow", "Find previous"))
+        self.actionFind_previous.setShortcut(_translate("MainWindow", "P"))
+        self.action_About.setText(_translate("MainWindow", "&About"))
+        self.actionSave_as_template.setText(
+            _translate("MainWindow", "Save as template...")
+        )
+        self.actionManage_templates.setText(
+            _translate("MainWindow", "Manage templates...")
+        )
+        self.actionDebug.setText(_translate("MainWindow", "Debug"))
+        self.actionAdd_cart.setText(_translate("MainWindow", "Edit cart &1..."))
+        self.actionMark_for_moving.setText(_translate("MainWindow", "Mark for moving"))
+        self.actionMark_for_moving.setShortcut(_translate("MainWindow", "Ctrl+C"))
+        self.actionPaste.setText(_translate("MainWindow", "Paste"))
+        self.actionPaste.setShortcut(_translate("MainWindow", "Ctrl+V"))
+        self.actionResume.setText(_translate("MainWindow", "Resume"))
+        self.actionResume.setShortcut(_translate("MainWindow", "Ctrl+R"))
+        self.actionSearch_title_in_Wikipedia.setText(
+            _translate("MainWindow", "Search title in Wikipedia")
+        )
+        self.actionSearch_title_in_Wikipedia.setShortcut(
+            _translate("MainWindow", "Ctrl+W")
+        )
+        self.actionSearch_title_in_Songfacts.setText(
+            _translate("MainWindow", "Search title in Songfacts")
+        )
+        self.actionSearch_title_in_Songfacts.setShortcut(
+            _translate("MainWindow", "Ctrl+S")
+        )
+        self.actionSelect_duplicate_rows.setText(
+            _translate("MainWindow", "Select duplicate rows...")
+        )
+        self.actionImport_files.setText(_translate("MainWindow", "Import files..."))
+
+
+from infotabs import InfoTabs
+from pyqtgraph import PlotWidget  # type: ignore

audacity_tester.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""Tests the audacity pipe.
+Keep pipe_test.py short!!
+You can make more complicated longer tests to test other functionality
+or to generate screenshots etc in other scripts.
+Make sure Audacity is running first and that mod-script-pipe is enabled
+before running this script.
+Requires Python 2.7 or later. Python 3 is strongly recommended.
+"""
+
+import os
+import sys
+
+
+if sys.platform == 'win32':
+    print("pipe-test.py, running on windows")
+    TONAME = '\\\\.\\pipe\\ToSrvPipe'
+    FROMNAME = '\\\\.\\pipe\\FromSrvPipe'
+    EOL = '\r\n\0'
+else:
+    print("pipe-test.py, running on linux or mac")
+    TONAME = '/tmp/audacity_script_pipe.to.' + str(os.getuid())
+    FROMNAME = '/tmp/audacity_script_pipe.from.' + str(os.getuid())
+    EOL = '\n'
+
+print("Write to  \"" + TONAME + "\"")
+if not os.path.exists(TONAME):
+    print(" does not exist. Ensure Audacity is running with mod-script-pipe.")
+    sys.exit()
+
+print("Read from \"" + FROMNAME + "\"")
+if not os.path.exists(FROMNAME):
+    print(" does not exist.  Ensure Audacity is running with mod-script-pipe.")
+    sys.exit()
+
+print("-- Both pipes exist.  Good.")
+
+TOFILE = open(TONAME, 'w')
+print("-- File to write to has been opened")
+FROMFILE = open(FROMNAME, 'rt')
+print("-- File to read from has now been opened too\r\n")
+
+
+def send_command(command):
+    """Send a single command."""
+    print("Send: >>> \n"+command)
+    TOFILE.write(command + EOL)
+    TOFILE.flush()
+
+
+def get_response():
+    """Return the command response."""
+    result = ''
+    line = ''
+    while True:
+        result += line
+        line = FROMFILE.readline()
+        if line == '\n' and len(result) > 0:
+            break
+    return result
+
+
+def do_command(command):
+    """Send one command, and return the response."""
+    send_command(command)
+    response = get_response()
+    print("Rcvd: <<< \n" + response)
+    return response
+
+
+do_command('Import2: Filename=/home/kae/git/musicmuster/archive/boot.flac')

devnotes.txt

@@ -0,0 +1 @@
+Run Flake8 and Black

mmimport

@@ -0,0 +1,6 @@
+#!/bin/bash
+# cd /home/kae/mm
+# MYSQL_CONNECT="mysql+mysqldb://musicmuster:musicmuster@localhost/musicmuster_prod" ROOT="/home/kae/music" direnv exec . 
+for file in "$@"; do
+        app/songdb.py -i "$file"
+done

pyproject.toml

@@ -2,9 +2,11 @@
 name = "musicmuster"
 version = "4.1.10"
 description = "Music player for internet radio"
-authors = [{ name = "Keith Edmunds", email = "kae@midnighthax.com" }]
+authors = [
-requires-python = ">=3.13,<4"
+    { name = "Keith Edmunds", email = "kae@midnighthax.com" }
+]
 readme = "README.md"
+requires-python = ">=3.11,<4.0"
 dependencies = [
     "alchemical>=1.0.2",
     "alembic>=1.14.0",
@@ -29,35 +31,27 @@ dependencies = [
     "tinytag>=1.10.1",
     "types-psutil>=6.0.0.20240621",
     "pyyaml (>=6.0.2,<7.0.0)",
-    "audioop-lts>=0.2.1",
-    "types-pyyaml>=6.0.12.20241230",
-    "dogpile-cache>=1.3.4",
-    "pdbpp>=0.10.3",
-    "filetype>=1.2.0",
-    "black>=25.1.0",
-    "slugify>=0.0.1",
 ]
 
-[dependency-groups]
-dev = [
-    "flakehell>=0.9.0,<0.10",
-    "ipdb>=0.13.9,<0.14",
-    "line-profiler>=4.2.0,<5",
-    "mypy>=1.15.0,<2",
-    "pudb",
-    "pydub-stubs>=0.25.1,<0.26",
-    "pytest>=8.3.4,<9",
-    "pytest-qt>=4.4.0,<5",
-    "black>=25.1.0,<26",
-    "pytest-cov>=6.0.0,<7",
-]
 
-[tool.uv]
+[tool.poetry]
-package = false
+package-mode = false
+
+[tool.poetry.group.dev.dependencies]
+flakehell = "^0.9.0"
+ipdb = "^0.13.9"
+line-profiler = "^4.2.0"
+mypy = "^1.15.0"
+pudb = "*"
+pydub-stubs = "^0.25.1"
+pytest = "^8.3.4"
+pytest-qt = "^4.4.0"
+black = "^25.1.0"
+pytest-cov = "^6.0.0"
 
 [build-system]
-requires = ["hatchling"]
+requires = ["poetry-core>=1.0.0"]
-build-backend = "hatchling.build"
+build-backend = "poetry.core.masonry.api"
 
 [tool.mypy]
 mypy_path = "/home/kae/git/musicmuster/app"
@@ -66,9 +60,6 @@ python_version = 3.11
 warn_unused_configs = true
 disallow_incomplete_defs = true
 
-[tool.pylsp.plugins.pycodestyle]
-maxLineLength = 88
-
 [tool.pytest.ini_options]
 addopts = "--exitfirst --showlocals --capture=no"
 pythonpath = [".", "app"]

tests/test_models.py

@@ -21,9 +21,7 @@ from app.models import (
 
 class TestMMModels(unittest.TestCase):
     def setUp(self):
-        """Runs before each test"""
         db.create_all()
-        NoteColours.invalidate_cache()
 
         with db.Session() as session:
             track1_path = "testdata/isa.mp3"
@@ -33,7 +31,6 @@ class TestMMModels(unittest.TestCase):
             self.track2 = Tracks(session, **helpers.get_all_track_metadata(track2_path))
 
     def tearDown(self):
-        """Runs after each test"""
         db.drop_all()
 
     def test_track_repr(self):
@@ -73,7 +70,7 @@ class TestMMModels(unittest.TestCase):
             NoteColours(session, substring="substring", colour=note_colour)
 
             result = NoteColours.get_colour(session, "xyz")
-            assert result == ""
+            assert result is None
 
     def test_notecolours_get_colour_match(self):
         note_colour = "#4bcdef"
@@ -203,7 +200,7 @@ class TestMMModels(unittest.TestCase):
             nc = NoteColours(session, substring="x", colour="x")
             _ = str(nc)
 
-    def test_get_colour_1(self):
+    def test_get_colour(self):
         """Test for errors in execution"""
 
         GOOD_STRING = "cantelope"
@@ -216,42 +213,22 @@ class TestMMModels(unittest.TestCase):
                 session, substring=SUBSTR, colour=COLOUR, is_casesensitive=True
             )
 
-            session.commit()
             _ = nc1.get_colour(session, "")
             colour = nc1.get_colour(session, GOOD_STRING)
             assert colour == COLOUR
 
             colour = nc1.get_colour(session, BAD_STRING)
-            assert colour == ""
+            assert colour is None
 
-    def test_get_colour_2(self):
-        """Test for errors in execution"""
-
-        GOOD_STRING = "cantelope"
-        BAD_STRING = "ericTheBee"
-        SUBSTR = "ant"
-        COLOUR = "blue"
-
-        with db.Session() as session:
             nc2 = NoteColours(
                 session, substring=".*" + SUBSTR, colour=COLOUR, is_regex=True
             )
-            session.commit()
             colour = nc2.get_colour(session, GOOD_STRING)
             assert colour == COLOUR
 
             colour = nc2.get_colour(session, BAD_STRING)
-            assert colour == ""
+            assert colour is None
 
-    def test_get_colour_3(self):
-        """Test for errors in execution"""
-
-        GOOD_STRING = "cantelope"
-        BAD_STRING = "ericTheBee"
-        SUBSTR = "ant"
-        COLOUR = "blue"
-
-        with db.Session() as session:
             nc3 = NoteColours(
                 session,
                 substring=".*" + SUBSTR,
@@ -259,13 +236,12 @@ class TestMMModels(unittest.TestCase):
                 is_regex=True,
                 is_casesensitive=True,
             )
-            session.commit()
 
             colour = nc3.get_colour(session, GOOD_STRING)
             assert colour == COLOUR
 
             colour = nc3.get_colour(session, BAD_STRING)
-            assert colour == ""
+            assert colour is None
 
     def test_name_available(self):
         PLAYLIST_NAME = "a name"

tests/test_playlistmodel.py

@@ -66,10 +66,10 @@ class TestMMMiscTracks(unittest.TestCase):
         self.model.insert_row(proposed_row_number=END_ROW, note="-")
 
         prd = self.model.playlist_rows[START_ROW]
-        qv_value = self.model._display_role(
+        qv_value = self.model.display_role(
             START_ROW, playlistmodel.HEADER_NOTES_COLUMN, prd
         )
-        assert qv_value == "start [1 tracks, 4:23 unplayed]"
+        assert qv_value.value() == "start [1 tracks, 4:23 unplayed]"
 
 
 class TestMMMiscNoPlaylist(unittest.TestCase):
@@ -109,7 +109,7 @@ class TestMMMiscNoPlaylist(unittest.TestCase):
             _ = str(prd)
 
             assert (
-                model._edit_role(
+                model.edit_role(
                     model.rowCount() - 1, playlistmodel.Col.TITLE.value, prd
                 )
                 == metadata["title"]
@@ -262,7 +262,7 @@ class TestMMMiscRowMove(unittest.TestCase):
         # Test against edit_role because display_role for headers is
         # handled differently (sets up row span)
         assert (
-            self.model._edit_role(
+            self.model.edit_role(
                 self.model.rowCount() - 1, playlistmodel.Col.NOTE.value, prd
             )
             == note_text
@@ -280,7 +280,7 @@ class TestMMMiscRowMove(unittest.TestCase):
         # Test against edit_role because display_role for headers is
         # handled differently (sets up row span)
         assert (
-            self.model._edit_role(
+            self.model.edit_role(
                 self.model.rowCount() - 1, playlistmodel.Col.NOTE.value, prd
             )
             == note_text
@@ -353,7 +353,7 @@ class TestMMMiscRowMove(unittest.TestCase):
             index = model_dst.index(
                 row_number, playlistmodel.Col.TITLE.value, QModelIndex()
             )
-            row_notes.append(model_dst.data(index, Qt.ItemDataRole.EditRole))
+            row_notes.append(model_dst.data(index, Qt.ItemDataRole.EditRole).value())
 
         assert len(model_src.playlist_rows) == self.ROWS_TO_CREATE - len(from_rows)
         assert len(model_dst.playlist_rows) == self.ROWS_TO_CREATE + len(from_rows)
@@ -380,7 +380,7 @@ class TestMMMiscRowMove(unittest.TestCase):
             index = model_dst.index(
                 row_number, playlistmodel.Col.TITLE.value, QModelIndex()
             )
-            row_notes.append(model_dst.data(index, Qt.ItemDataRole.EditRole))
+            row_notes.append(model_dst.data(index, Qt.ItemDataRole.EditRole).value())
 
         assert len(model_src.playlist_rows) == self.ROWS_TO_CREATE - len(from_rows)
         assert len(model_dst.playlist_rows) == self.ROWS_TO_CREATE + len(from_rows)