Thanks to The RPG Athenaeum for pointing me to Stuffed Crocodile’s excellent collection of RPG (and generally awesome) music.
I’ve long used music in games and totally agree that it should be used for establishing atmosphere and ambiance. The problem, of course, is getting the right music for the right scene… and not being too fiddly with the CD player while trying to GM. Years ago, I ran games with a mixed DVD of burned music, with general ‘exploration’, ‘combat’, ‘wonder’ and a few other vague emotional notes. I’d just hop between folders depending on the scene we were playing. It worked, but I never hit on the idea of using loops.
Anyway, there is some excellent music on this list and I’ll certainly be going through it at length!