Neat game! I think it could've been really cool to integrate the idea of music more into the actual gameplay, like having your bullet sounds sync to the music or something. I also wish changing your weapon felt more responsive, most of the time scrolling didn't do anything. Otherwise a great little game! 

The concept is cool and there is a lot of potential. It took me a while to understand that I couldn't shoot and move at the same time. The sound effect of the trumpet is really funny ! 

Congratulation for your submission ^^

Cool idea, and I like how each of the notes gives different bullet effects. It did get kinda old after a little while, but it's a fun base game!