Hey!
I thought the mechanics you introduced were really cool. I really enjoyed the music and the visuals that went along with it.
I wish you integrated rhythm a little bit more into the game, while you had to press to move along with the beat your character really was the only thing that moved with the beat. With rhythm games I almost expect all enemies to move with the beat, as well as beat/rhythm based puzzle solving mechanics.
I'm super impressed that you managed to pull of a rhythm game at all, and though that your ideas for mechanics were super fresh and creative. Great job!