Earth's Dylan Carlson has the unfortunate notoriety of being the guy who bought the gun that Kurt Cobain used to kill himself. His band has been churning out mostly instrumental albums since 1989, and I really enjoy their hypnotic sound.
What's your favorite instrumental music?
PS. If you're in the mood for headbanging this weekend, our sister site Newstalgia has for its Backstage Weekend concert, Nazareth live from 1975.