Really loved this game and it's one I find myself coming back to every now and then. It's just a shame I didn't find it until the submission period was over. Gameplay concept and audio are of course through the roof but also I really like the visuals a lot too. That being said I am not very good at it especially when it's the sad girl's part and I had to play multiple notes at the same time.
If you were to improve upon this, I think the game letting you know the exact notes you got wrong at the end would be nice, so I can analyse my mistakes. Also I wish you could change the speed of the replay + letting us easily rewind and pick a starting point for the replay would be a blessing. Otherwise this is a great game that I hope you continue developing.