diff --git a/jam-ui/src/store/features/mediaSlice.js b/jam-ui/src/store/features/mediaSlice.js
index 8be9f7ddf..8270d9103 100644
--- a/jam-ui/src/store/features/mediaSlice.js
+++ b/jam-ui/src/store/features/mediaSlice.js
@@ -629,6 +629,17 @@ export const {
 
 export default mediaSlice.reducer;
 
+// Cleanup function for JamTrack download callbacks
+// Called on component unmount to prevent memory leaks from orphaned window globals
+// Pattern matches useRecordingHelpers.js cleanup approach
+export const cleanupJamTrackCallbacks = () => {
+  if (typeof window !== 'undefined') {
+    delete window.jamTrackDownloadProgress;
+    delete window.jamTrackDownloadSuccess;
+    delete window.jamTrackDownloadFail;
+  }
+};
+
 // Selectors
 export const selectBackingTracks = (state) => state.media.backingTracks;
 export const selectJamTracks = (state) => state.media.jamTracks;