dude, that was friggin awesome.
i command you to make more, you should do another version of that and have it like a rythem game. or maby find a way to have it so people can record their own drum beats and so if they dont have a drummer handy but they have their guitar or bass they can still jam.
i think the idea of having a guitar or bass version is awesome as well. in fact if you wanna go wild, have all three instruments at once and be able to record them so people can make their own tunes. if you keep it up and add more, work on the animation alittle, and the graphics, you'd get front page for sure.
do it! i command you!