Peter Dawson, Walter Soomer, Jacques Urlus, Eleanor de Cisneros, Karl Jorn, Lucrezia Bori, Antoinette Laute-Brun, Rosa Olitzka, Studio Pianist, Studio Conductor, Marie Rappold, Maria Delna, Blanche Arral, Francesco Daddi, Pierre-Aurele Asselin, Frieda Hempel, Studio cellist, Gaston Dubois, Studio Orchestra, Charles Hackett