I must say, Ive never played anything quite like this before. Its a lot of fun, and a totally different take on music/rythm games.
I have the same issue as everyone else though, why on earth doesnt the screen rotate? I mean really, did the developers not have anyone with a smart cover on an iPad 2 play this before they released it? Im not going to take off a star for it, I just hope they fix it soon.
Try2bcool about Frederic: Resurrection of Music