Add some screen shots / gifs to your itch page, this is exactly the type of game I like to play but I wouldn't know that from glancing at the submission, almost missed this one!
I think the art style and audio are great, I think the gameplay was a little bit too simple with just 1 button type, adding a second or third track to make it a little more traditional rhythm game would have helped alot. Also a little juicier feedback for getting perfect scores and especially streaks of perfect scores would have brought this game to the next level and made it super addicting!