German musician Wilhelm Guttmann, of Jewish descent, was an opera and concert singer and composer. He studied music in Berlin from 1903, and from 1922-34 was engaged first at the Berlin People’s Opera then at the Berlin State Opera. From 1926 he was a lecturer at the State Academy for Church and School Music in Berlin. In 1934 the Nazis forced him to give up his career, and he was only allowed to occur in performances of the Jewish Cultural Association in Berlin. After that, he was interrogated several times, and most likely tortured. Immediately after being interrogated by the Gestapo in February 1941, he suffered a heart attack during a music performance and died immediately.