"1905 03 03." . . . . . . . . . . . . . . . . "Saying that no music organization in Germany has so actively and unselfishly performed large new works as has the Wagner-Verein, and listing, as proof, the composers and works: Liszt, Berlioz, Cornelius, Wolf, Richard Strauss, Oscar Fried, Hausegger, Bruckner, Siegfried Wagner, Schillings, Othergraven, Sommer, d'Albert, Alex. Ritter, and Mahler: \"Quod erat demonstrandum--!\""@en . . . . . . "Friedenau Mar. 3 1905, to an unidentified recipient"@en . . . . . .