This should be set as an example how to take a theme for the jam, use the obvious, but with a twist to make it absolutely unique and original. The intro featuring Vivaldi and Beethoven is absolutely hilarious. You really developed a story there, that makes sense to the whole game. With the actual game I struggled a lot, I'm not so good on reflexes and only reached the boss once, where I tried to attack but didn't know what to do!
I see that you made forgiving hitboxes for thunder and planes, even still I struggled. But overall, I really liked that artstyle, even simple, it feels part of a same world. Congratulations, you should be proud!