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