+/*!
+ * @method songEnabledAtIndex:
+ */
+- (BOOL)songEnabledAtIndex:(int)index;
+
+/*!
+ * @method currentAlbumTrackCount:
+ */
+- (int)currentAlbumTrackCount;
+
+/*!
+ * @method currentSongTrack:
+ */
+- (int)currentSongTrack;
+
+/*!
+ * @method playerStateUniqueIdentifier:
+ */
+- (NSString *)playerStateUniqueIdentifier;
+