Abruptum is a Swedish black ambient band formed in 1990 by IT and All. Notable for long, gruesome sessions of improvised noise, they would allegedly record during acts of self-mutilation. The band became kind of famous very much thanks to the fact that IT was one of the leaders within what was called the Satanic Black Circle, along with members of bands like Mayhem and Emperor. IT had planned to create the band already in 1987 but it wasn't until 1990 that he found the right member to do it. The same year they recorded their first two demos. After .