Severely underrated game that needs more attention. First off, massive props to you for not only being able to create a smooth, original rhythm game mechanic, but also create orignial music that works for it.
I really really liked the atmosphere of this game. Even though it was a stick figure, he was so well animated that over time I didn't even notice. In fact, I think it adds the games charm. The lighting and effects really make this feel like a performance, and also the way different colored notes correspond to different instruments almost made me feel like a DJ playing the song! So neat!
The only thing I can suggest changing is the strike sound. I totally get you were going for one that would be heard over the music, but I think this one kinda jolts the player out of the expierence and makes it a little hard to get back in the groove. Maybe you could go for a sound that kinda matches the dance theme (record scratch? Crowd booing?), and make it more visual than loud! Like the whole stage goes red for a sec or something.
Aside from that, awesome job. My favorite track was Fireflies. Such a catchy tune!!!!
-Sasha