Quite impressive!
At first I thought this may in fact be an actual game and was wondering how to start it. It was nice that you had such a great intro which yourself playing the guitar. I also liked how the black arrow appeared on the screen and switched to "Spectator" mode. I wasn't sure what that was even supposed to mean, but in its own way, it worked. The sprite work was pretty impressive as well, especially the rain falling. My only complaint is that the action scene could've been a bit more intense and had more moves, but still a good watch.