This is incredibly well polished! So many cool touches, like being able to name your band and even draw a little logo!
I do wish there was a bit more of the gameplay itself though, it felt like the exposition took center stage and the gameplay wasn't as big a part of the game as I was expecting. Maybe that's why it felt like such a jump in difficulty between the two fights - because you're basically going from the tutorial to the final boss? But holy crap, this was really good!
Also, incredible detail that you steal his shoes at the end, that part got me good! :D