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