Well, I'm really bad at teaching things in general so honestly I would actually prefer it if I just did the work myself. :P
Though if you're really intent on learning something, I suppose I could try to write up a little somethin' somethin'.
Uhm, well I currently play bass guitar though I played guitar for a while and I even sang in a choir for six years or so when I was a kid. So I have a basic grasp of fundamental music theory, I suppose. However, I'm not very good at composing music. I'm a very left-brained person so math and science are my areas of expertise (in case you haven't noticed already :P) while creativity... well, yeah.
I guess the main thing that I want to do is take existing songs and make arrangements of them that sound good in a hack (because I've noticed that there are huge differences between normal music that you hear on the radio and video game-style music). And you seem to be pretty good at making tracks that sound good in-game.