Music Catch 2 Nice, but no pull...
It was a pretty fun game, and addicting...until I stopped. I realized that there is nothing that will bring me back to this game. There was no way to lose. Maybe you should make levels have requirements, or make a "Submit Highscore" feature to bring users back to the game.
On another note, the music for this game was wonderful. It worked perfectly. Of course, you could say the game was perfect for the music (seeing as the symbols came up when the music played,) but I just feel like it was perfect for this type of game.