private void Playback_NotesDisplayStarted(object sender, MarkablePlaybackEventArgs e) => this.notesOnDisplay[((NoteOnEvent)e.PlaybackEvent.Event).NoteNumber].Enqueue(e.PlaybackEvent);
private void Playback_NotesDisplayFinished(object sender, MarkablePlaybackEventArgs e) { var offTest = ((NoteOffEvent)e.PlaybackEvent.Event).NoteNumber; this.notesOnDisplay[offTest] = new ConcurrentQueue <MarkablePlaybackEvent>(); }