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In page Luise Helletsgruber:
"Together with Erika Rokyta and Jella Braun-Fernwald, she went on tour in the mid-1920s. Until 1938 she regularly sang leading roles at the Salzburg Festival, for example in 1931 and 1935 to 1938, Donna Elvira in Don Giovanni and Marzelline in Beethoven's Fidelio. She also assumed the latter role in 1936 on the occasion of the reopening of the rebuilt Salzburger Festspielhaus. The conductor was Arturo Toscanini, and the director Lothar Wallerstein in stage designs by Clemens Holzmeister. The ensemble included Lotte Lehmann as Leonore, Koloman von Pataky as Florestan, Carl Bissuti, Alfred Jerger, Anton Baumann and Hermann Gallos.[citation needed]
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