The notable German bass, Hans Sotin, was a student of F.W. Hetzel and then of Dieter Jacob at the Dortmund Hochschule für Musik. In 1962 Hans Sotin made his operatic debut as the Police Commissioner in Der Rosenkavalier in Essen. After joining the Hamburg State Opera in 1964, he quickly became one of its principal members singing not only traditional roles by creating new roles in works by Blacher, Einem, Penderecki et al. His success led to his being made a Hamburg Kammersänger.