This was really well done! I feel like I maybe could have used a visual cue to know when I'd missed it or something but maybe I'm just bad at it haha. Really fun idea and really cool little game.
Yes I definitely questioned myself multiple times on whether to go all-in on having no obvious visual feedback. There is a really subtle effect where the circles will disappear if you miss a note. I wanted the game to be fully playable without looking at the screen. Thanks a lot for the feedback!