This was amazing, each aspect of the game was really well thought out and polished from the theme to the art and animations to the gameplay synergy and the controls. The art in particular is so pleasant to look at.
I was really impressed with the use of musical modes as a core gameplay mechanic, I briefly thought of musical modes as a potential idea for this jam but didn't think to tie them to gameplay modes, I think that's brilliant and it really makes me want to see the full game with all 7 musical modes (or just a select few, 7 sounds like a lot of attack-sets to create and balance even for a standalone commercial game).
Definitely looking forward to a full game, it already plays and looks like one, I was very glad to see To Be Continued at the end. The attack combos in each mode are so satisfying!