Peccatum was an avant-garde metal band from Norway. Their influences range from black metal, progressive metal, industrial music, symphonic metal and gothic metal to European classical music and contemporary music .
Peccatum was formed by singer Ihriel (Heidi Solberg Tveitan), her husband Ihsahn (of the well-known black metal band Emperor), and her brother Lord PZ. The group released three albums and two EPs. Lost in Reverie, released in 2004 after Lord PZ's departure, moved towards a more classical, avant-garde and musically opaque direction.