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