Ah, a perfect break from Rhythm Paradise! :p
This is absolutely the kind of minimalist rhythm game I dig, and it works so well! The mechanic is simple, but has enough depth to keep things interesting, either with the level-design or the changes of tempo. And everything is so cute! The art is gorgeous, the story is fun, the intro cinematic is lovely, and of course the music of course is enjoyable all the way. It’s a really beautiful game you made!