In the middle of 1971, Rolf Ulrich Kaiser's management style at Ohr caused two of his A&R men, Bruno Wendel and Günter Körber, to leave Ohr and set up their own record company, which they called Brain. The new label was rapidly a success throughout Germany and much of western Europe.
The label was based in Hamburg as a subsidiary of Metronome Records. Körber left Brain in 1976 to start his own record label, Sky Records.