The music approach he has when he is recording with Satyricon and 1349 according to him, is very different. With Satyricon he  tries to fit more closely with other musical instruments, in order to sound like a group and in 1349 he concentrates more on how faster, heavier and violent can be. Also in 1349 he uses corpsepaint, with purpose to reach a higher place of spirituality, that he could not achive otherwise.