Needs some improvement.
I think this time, you should make it not-so-flashy, or something, so it runs faster on more PC's (mines a piece-o-crap), because it should be much smoother! The menu interface could use polishing up, maybe smooth and simple style, maybe even have all of the menus in one, using some kind of animation to switch between sections. My biggest problem was that songs got really confusing sometimes, so (and you can ignore this idea 'cause it's so drastic), make the whole game one handed.
I would rival you're game with these features, but I don't have enough money to buy Flash. Otherwise, keep up the good work!