This is a really good starting point for a rhythm game. I couldn't tell if the game was suppose to end or if I got a bug, but the level after the tutorial just goes quite and nothing happens, so I am assuming I beat it. I like these type of games in general so an more polished experiences would be pretty cool.
As an fyi, I played initially with my eyes closed and was able to make it to the end of level 1, but opened once nothing seemed to be happening.
Great work for a day!