- Marcel Journet, Giovanni Martinelli, Ladies' Chorus, Hulda Lashanska, Clarence Dickinson, Armand Bernard, Lawrence Tibbett, Rosa Ponselle, John Charles Thomas, Gladys Swarthout, Claudia Muzio, Paul Reimers, John McCormack, Studio Chorus, G. Tarragó, Rosario Bourdon, Dorothy Maynor, Trinity Church Choir, New York, Margarete Matzenauer, RCA Victor Symphony Orchestra, Lorenzo Molajoli, Ernestine Schumann-Heink, Renata Tarragó, Studio Orchestra, Stewart Wille, Georges Thill, Richard Crooks, Milton Katims, Aksel Schiøtz, Elisabeth Schumann, Victoria de los Ángeles, Edwin Schneider, Carroll Hollister, Richard Tauber, Mogens Woldike, Henry Geehl
