This is a super cool idea, I'm very bad at keeping beat and music in general so I had some difficulties with this one just because of my own shortcomings but it seems like a really cool idea and I had fun with it until I got ultimately stumped. I did really like the indicator in the pause menu showing the beat pattern and I think that should be incorporate into the normal view somehow. And it would be nice to have some indicator showing what my beat looks like in correlation with what the beat is supposed to look like. All in all great work!