It's an interesting take, though I'm not sure I get it. It seems like the rhythm doesnt really factor in anywhere. You just kind of have to make sure to move the correct number of spaces when you push the button, like you could play this without the music. Idunno, doesn't seem to create a particularly engaging game loop. The music is nice and the aesthetic is good though.
But having created a rhythm game ourselves for this, doing anything properly with rhythm is very difficult... so I can't really blame you