The band with the bizarre name Sperrmüll (bulky waste) from the Aachen region was formed at the end of 1971 by members of various beat bands. After numerous changes around Harald Kaiser (b, voc) and Reinhold Breuer (dr, perc), a trio emerged with Helmut Krieg (g, mand, voc), to which Peter Schneider (organ, piano, synth) eventually joined. This quartet caught the attention of journalist Charles Zander-Dürr, who wanted to organise a record deal for the band. They eventually secured a record deal with the fledgling label Brain Metronome. At the end of 1972, they entered the studios of Dieter Dierks in Stommeln. Along with Conny Plank, Dierks was one of the two most sought-after sound engineers and record producers in Germany at the time and also played synthesizer on the opening track. Zander-Dürr immortalised himself as the self-appointed producer with Chazadü on the cover. The self-titled debut album, released in May 1973, presented a wild mix of dark hard rock riffs with heavy organ sounds and excessive guitar solos plus psychedelic elements.

Despite positive press reviews and a tour with Birth Control already booked, the underage Peter Schneider left the group under parental pressure, forcing the tour to be cancelled. Internal disputes led to the band's demise later that year. Today, their only LP is considered a cult Krautrock record among collectors, and the original German vinyl has become one of the label's rarest and most expensive records.