The most satanically blasphemous type of music known to exist. It is meant to praise the Necrowizard, and promote his unholy vision of
Planet Norway! Some great ABM bands are:
Impaled Northern Moonforest,
ORGH, Nocturnal Blasphemy, Fjord of Fury, Morkk Pikk, Satanic Necrokvlt Lord, Inverted Blasphemous Moongoats of Norway etc.