There are two artists with the name Bergtatt: 1) A Norwegian folk/rock band. 2) A dungeon synth project from the United States.
1) Bergtatt are a folk/rock band from the Risør kommune of Norway. Their debut album, Røtter, is a mix of traditional Norwegian folk songs (with a Swedish song, namely "Bläck") played in a hard-rock fashion, and originals by the band. They have shown in this effort that folk music is indeed still relevant, and the truth of this is self-evident. Read more on Last.fm