Borbetomagus is a trio of Don Dietrich (reeds) Jim Sauter (reeds) and Donald Miller (guitar) and additionally Brian Doherty (electronics) that has existed since the mid-seventies. This is free-improv "jazz" of the most extreme nature and its not for the faint hearted, since Borbetomagus create a heavy bone crushing wall of noise. They were working with many artists, including Thurston Moore and the Swiss duo Voice Crack.