A really nice idea :)
I liked the art and the aesthetics. Nice color use and cute designs. I also like how the correct path lights up. Real pleasing to look at.
It really is to bad that it feels like the input is a little to strict. I had a lot of times where I swear that I was pressing on the beat or the circle, but it just wouldn't work. I think if the song loops it has a little delay where a desync may happen? I am not sure what the problem exactly is, but nevertheles a really ambitious mechanic to do in 48 hours!
Great job :)