Hi! I really think like you, that music can shape the atmosphere of a game, and without it would be absolutely different and empty in some way.
If you like this jam, I'm pretty sure you will love another jam we've scheduled for January: Composers'n'Devs jam, a collaborative-based game jam between music composers and game Devs, here is the link: https://itch.io/jam/composers-n-devs-jam-first-edition