There Are Multiple Artists Using This Name. 1. Mutter Is A Berlin Based Rock Band Existing Since 1986. 2. An American Band. One Song Appeared On The Secret Eye Sampler "For The Dead In Space" Vol. II & III Forbidden City. Members Are Bruce Kurnow Harp Robert Powell Pedal Steel James Tomkins Guitar Joseph Pope Bass Vocals . 3. Mutter Is An Electronic/black Metal/doom Project From Massachusetts US.