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. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.