It was a good and fun game !!
To be honest, it lacked a bit of music and a bit of energy, I don't know if you see ? Like I would have loved to go a bit faster, it lacked a bit of dynamism.
But this is for a finished game of course, for a game jam game (72hours), you did a rhythm game (I'm so envious I really need to do one <3), it is playable, the art is hand made (props to you !), and there a re a lot of different control keys and all...really, you did a very good job ! I liked it !