I'd really love hear the main menu music as a standalone song! It's a little weird to hear the music cut as the loop ends in the menu every time. I am absolutely obsessed with the music and can't want for more.
I'd like to re-record the main theme and extend it somewhat. As I remember, I recorded it in a bit of a weird key as the instrument I started with was out of tune and the process was somewhat rushed. So yes, there'll be a fuller version of it eventually
