Tap on the black piano tiles as fast as possible. Just don't hit the white tiles!
The game features 4 modes.
1) Classic mode - Play a single song in the least time possible.
2) Arcade mode - How many black tiles can you tap before gameover?
3) Zen mode - How many black tiles can you tap in 10 seconds?
4) Bomb mode - Make sure you don't hit the white and red tiles.
