diff --git a/app/classes.py b/app/classes.py
index 3ed90ea..41581f0 100644
--- a/app/classes.py
+++ b/app/classes.py
@@ -75,6 +75,12 @@ class ApplicationError(Exception):
     pass
 
 
+class AudioMetadata(NamedTuple):
+    start_gap: int = 0
+    silence_at: int = 0
+    fade_at: int = 0
+
+
 @singleton
 @dataclass
 class MusicMusterSignals(QObject):