Hey, you got some really cool stuff! I'm planning to make a simple puzzle platformer of sorts using GameMaker Studio, and could use some nice bg music. This is my first jam, so it's gonna be a challenge, but I want to do as much as I can on the first day to have something playable that could indicate what kind of music would fit it.
If the offer is still on and you're willing to give it a go, let me know.
Cheers