Cool idea, way, way, way, way too hard for me. Too many notes, too fast, and the colors being on/off and then swapping is just a ton. I think if the notes came at maybe half speed, it'd be approachable? Also agreed with others, the controls were a bit different, and I had a really hard time getting used to them.
That all said, I thought this was a really cool idea, and could be expanded further. The bit of music that I heard I really liked, and visually, I liked the overall presentation. Good job!