First an army officer, Wolff studied singing after WWI. His debut took place at the Bayreuth festival in 1925 as Loge, which was to be his most famous role. His was a member of the theatres of Hagen, Chemnitz, and the Berlin Staatsoper from 1928 on. Many guest appearances (Vienna, London, Paris, Prague, Budapest, Chicago, Cleveland). Had to retire after 1942 since he was almost blind then. Contradictory to his important career, he made few recordings; this one is his best-known, and he's certainly not up to Kipnis' standard here.