Nearly 3000 tracks by many great artists, free even for commercial use.
Over 1000 songs, free even for commercial use, proudly presented by Kevin MacLeod.
Adventure Mystery Nostalgic
Bright Dangerous Dramatic Mysterious Suspenseful
This is a dark and eerie arrhythmic thing with deep lows and cutting highs. Experimental only in the personal sense - I just got GarageBand, and I'm seeing what the (very nice) electronic effects can do.