Kluster is a German experimental musical group whose work often resembles later industrial music. 　　The original Kluster was short-lived, existing only from 1969 until mid-1971 when Conrad Schnitzler left and the remaining two members renamed themselves Cluster. The trio originally met when Moebius was working as a steak chef in Berlin, and was invited to join a band by Roedelius and Schnitzler, who were at that time engaged in the joint venture of the Zodiak Club, a Berlin nightclub they had founded. The band was based in West Berlin. They are often categorized as Krautrock. Although all three members played many different instruments on the three albums they recorded, the lineup is sometimes described as consisting of Moebius on drums, Roedelius on cello and Schnitzler on keyboards. Unorthodox instruments such as car batteries and electricians' signal generators were also used. Kluster had minuscule sales during the time they were active. Only 300 copies each of the first two LPs were pressed and sold. Each of the members gained a much larger following as a result of their later works and reissues on LP in the 1980s and CD reissues released in 1996 and 1997 garnered much more respectable sales figures. Today Kluster is considered a seminal and influential band from the formative years of the Krautrock movement. 　　Since then Kluster has been revived twice, with Schnitzler as the only common member. The second lineup lasted from 1971 until 1973, and two albums have been archivally released from that period. Another lineup came into being in 2007, and have released four albums so far, as well as a lone track for a compilation. However, Schnitzler's death in 2011 brought an end to the band.