Mysteries of the Universe, Part Ten

Okay, I had really hoped to have an answer to this one by now, but here's what is, to me, a true mystery.

There's a lot of great music featured on the show The Adventures of Pete & Pete. I got an album of all the stuff Polaris did for the show--at least, all the full songs. There's some bits of those songs that are just the music without words that show up in the occasional scene or two. I haven't started tracking down all the stuff by the Magnetic Fields and the other bands' music that was used for the show yet. I think it would be really awesome to compile a definitive, episode-by-episode list of the music from the show. But the thing that would be the piece to get is Marmalade Cream, which shows up in at least a couple of episodes in the background. None of the Pete & Pete fansites know who did it, or where to get it. I tried one of my two far-flung routes of obtaining any information on it, and the other seems a lot less worthwhile. But I think it's time to try. If I ever find it, I'll explain how I got it. But at any rate, that's what keeps gnawing at the back of my mind this month. I think it just reached my temporal lobe, so if I don't hear from any of you for awhile, I'll understand why.