Career
In Immortal, he is known for his lyrics which, unconventionally for black metal, focus on icy landscapes and a fictional land called Blashyrkh. The story of Blashyrkh is gradually told throughout Immortal"s albums. When writing lyrics he often takes long walks in the Norwegian countryside near his hometown of Bergen for inspiration.
He was known for his simplistic but extremely fast guitar parts which always featured power chords.
He and frontman Abbath comprised the core of Immortal in its early years, with other members fluctuating and little stability until drummer Horgh joined the band in 1997. That same year, he was diagnosed with acute tendinopathy and could no longer play guitar at the speed required for Immortal.
Instead, he continues to write lyrics for the band and often takes the role of manager. Demonaz has appeared in all of Immortal"s music videos, including the music video for All Shall Fall, which was released in September 2010.
Demonaz has started a band called Demonaz where he is the vocalist.
He has released his debut album, March of the Norse, in April/May 2011.
