diff --git a/app/classes.py b/app/classes.py
index d901d24..a4fdbfc 100644
--- a/app/classes.py
+++ b/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
 
@@ -71,6 +71,17 @@ class FileErrors(NamedTuple):
     error: str
 
 
+@dataclass
+class Filter:
+    path_type: str = "contains"
+    path: Optional[str] = None
+    last_played_number: Optional[int] = None
+    last_played_unit: str = "years"
+    duration_type: str = "longer than"
+    duration_number: int = 0
+    duration_unit: str = "minutes"
+
+
 class ApplicationError(Exception):
     """
     Custom exception