There is 1 single aspect to this game that completely ruins the experience. And I'll be the first to go by "well if you don't like the rules don't play the game" if you are trying to 'learn' a song (of which there is no practice or anything of the like) if you make a single wrong move the song stops right there. Very limited number of plays. They very much want you to spend money on their game. How about more gems for the mess ups. SOMETHING. The only way I've fixed this problem is UNINSTALLING.