I'm a bit surprised to see someone with your credentials offering to help in a game jam.
For myself I have found that music and sound is just as important as everything else in a game and have been working on improving my own music skills.
While I'm happy to keep doing the music myself, once I've uploaded my game, I would be interested in your feedback. I'd still say I'm a beginner, but getting feedback on the music from someone with your experience would be very helpful.