Having a lot of fun with this so far, but I'm commenting because I need to know why the thinking emoji appears. I had assumed it was after the penultimate match, but I don't think it can be, based on some games that it has appeared during.
As someone who can't read rhythm notation, I would appreciate an option of sound only cues, no notation (maybe unlocked if you lose at 12?), since that's basically how I was playing anyway. Still great fun besides that, though.