public void Execute(SongPlayer player)
{
switch (this.type)
{
case SongActionType.StartTrack: player.StartTrack(this.track, true); break;
case SongActionType.StopTrack: player.StartTrack(this.track, false); break;
case SongActionType.FocusTrack: player.FocusTrack(this.track); break;
case SongActionType.EndSection: player.EndSection(); break;
default: throw new NotImplementedException();
}
}