There are a few bands called Umlaut. 1) (Ümlaut) An anarchist punk/crusty/hardcore/thrash band who claimed to be from Finland. They are notorious squatters, and ride large motorcycles.
Ümlaut's discography consists of s/t 6" EP and "Havoc Wreckers" LP (2001), both of which were rereleased as "Total Disfückingcography" CD. 2) A band based in Melbourne, Australia which includes former Mr. Bungle member Bär (pronounced "Bear") McKinnon. 3) A Japanese rock band. (umlaut.)

Read more about Ümlaut on Last.fm.