Okay, just found this band
http://www.hexentanz.us/hexentanz/
They play music on human banes and on ancient instruments with arcane chants steeped in cult traditions. They use a kangling (human thigh bone flute), records, pipe chants, random experimental noises, electronic voice phenomena recordings, and the band members' own distorted chant vocals... it's a soundtrack to a medieval witch's gathering.
So, yeah, more stuff like that
