I love the take on the theme here, the music is great and it's really easy to get in the zone!
I think however the controls might be a little finnicky. I had a lot of trouble getting my inputs to register. I also think the first note of every line is really hard to time because when the tempo indicator gets to the end it slides all the way back to the left to start. I think if you added more line before the first note and had the tempo indicator instantly start back at the start of the line it would help the player hit that first note better.
Awesome job can't wait to see more from yall!