Mischa Schmidt, Ruby Mercer, Igor Chichagov, Romano Romani, Rosa Ponselle
Paul Reimers, John McCormack, Georges Thill, Stewart Wille, RCA Victor Symphony Orchestra, Studio Orchestra, Armand Bernard, Ernestine Schumann-Heink, Ladies' Chorus, Giovanni Martinelli, Richard Crooks, Richard Tauber, Henry Geehl, Mogens Woldike, Lorenzo Molajoli, John Charles Thomas, Rosa Ponselle, Lawrence Tibbett, Claudia Muzio, Gladys Swarthout, Studio Chorus, G. Tarragó, Dorothy Maynor, Rosario Bourdon, Milton Katims, Hulda Lashanska, Clarence Dickinson, Victoria de los Ángeles, Aksel Schiøtz, Elisabeth Schumann, Marcel Journet, Renata Tarragó, Margarete Matzenauer, Trinity Church Choir, New York, Carroll Hollister, Edwin Schneider
Nathan Milstein, Jan Peerce, Yehudi Menuhin, Risë Stevens, Marian Anderson, B. Smith, Gregor Piatigorsky, Franz Rupp, Robert Merrill, Mischa Elman, Ezio Pinza, Carroll Hollister, Gibner King, W. Rose
