Norwegian music group formed in 2003 by Einar Selvik along with Gaahl and Lindy-Fay Hella. They are dedicated to creating musical renditions of Norse cultural and esoteric traditions, and make significant use of Nordic historical and traditional instruments including deer-hide frame drums, flutes, kraviklyra, tagelharpe, mouth harp, goat horn, and lur. Non-traditional instruments and other sources of sound like trees, rocks, water, and torches are also used