Weill had to flee from Nazi Germany in March 1933. As a famous and popular Jewish composer, he was a target of the Nazi authorities, who criticized and even interfered with performances of his later stage works, such as "Aufstieg und Fall der Stadt Mahagonny", "Die Bürgschaft" (1932), and "Der Silbersee" (1933). He went first to Paris, where he started a work with Jean Cocteau but it was not finished. He wrote one more work with Brecht: the ballet "The Seven Deadly Sins". In 1934, he completed his "Symphony No.2", his last purely orchestral work, conducted in Amsterdam and New York by Bruno Walter.