- Irene Jessner, Gerhard Pechner, Lorenzo Alvary, George Szell, Anthony Marlowe, Emery Darcy, Thomas Hayward, Lodovico Oliviero, Thelma Votipka, Ludwig Burgstaller, Hertha Glaz, Maxine Stellman, Emanuel List, Nadine Conner, The Metropolitan Opera Orchestra, Edward Caton, Walter Olitzki, Thelma Altman, Alessio De Paolis, Lillian Raymondi, The Metropolitan Opera Chorus, Jarmila Novotna, Mona Paulee
- George Cehanovsky, Norman Scott, Margaret Roggero, Roberta Peters, Eugenio Fernandi, Thelma Votipka, Calvin Marsh, Mildred Allen, Fausto Cleva, Madelaine Chambers, The Metropolitan Opera Orchestra, William Wilderman, Louis Sgarro, The Metropolitan Opera Chorus, Gabor Carelli, Leonard Warren