next opera, Das Spielwerk und die Prinzessin, which was given simultaneous premières in Frankfurt and Vienna on 15 March 1913 was less well received (the work was subsequently revised as a one-act 'Mysterium' entitled simply Das Spielwerk in 1915), but the scandal caused by this opera in Vienna only served to make Schreker's name more widely known. The outbreak of World War I interrupted the composer's success but with the première of his opera Die Gezeichneten, in Frankfurt on 25 April 1918, Schreker moved to the front ranks of contemporary opera composers. The first performance of Der Schatzgräber in Frankfurt on 21 January 1920 was the high point of his career. The Chamber Symphony, composed between the two operas for the faculty of the Vienna Academy in 1916, quickly entered the repertoire and remains Schreker's most frequently performed work today. In March 1920 he was appointed director of the Hochschule für Musik in Berlin and between 1920 and 1932 he gave extensive musical tuition in a variety of subjects with Berthold Goldschmidt, Alois Hába, Jascha Horenstein, Julius Bürger, Ernst Krenek, Artur Rodziński, Stefan Wolpe, Zdenka Ticharich and Grete von Zieritz numbering among his students. End of career Schreker's fame and influence were at their peak during the early years of the Weimar Republic when he was the most performed living opera composer after Richard Strauss. The decline of his artistic fortunes began with the mixed reception given to Irrelohe in Cologne in 1924 under Otto Klemperer and the failure of Der singende Teufel, given in Berlin in 1928 under Erich Kleiber. Political developments and the spread of anti-Semitism were also contributory factors, both of which heralded the end of Schreker's career. Right-wing demonstrations marred the première of Der Schmied von Gent in Berlin in 1932 and National Socialist pressure forced the cancellation of the scheduled Freiburg première of Christophorus in 1933 (the work was finally performed there in 1978). Finally, in June 1932, Schreker lost his position as Director of the Musikhochschule in Berlin and, the following year, also his post as professor of composition at the Akademie der Künste. In his lifetime he went from being hailed as the future of German opera to being considered irrelevant as a composer and marginalized as an educator. After suffering from a stroke in December 1933, he died in Berlin on 21 March 1934, two days before his 56th birthday. Although Schreker