- Mona Paulee, Salvatore Baccaloni, Lawrence Tibbett, George Cehanovsky, Alessio De Paolis, Jan Peerce, The Metropolitan Opera Orchestra, Grace Moore, Lorenzo Alvary, Cesare Sodero, John Baker
- Calvin Marsh, Guiseppe Campora, Clifford Harvuot, Tullio Serafin, Alessio De Paolis, George Cehanovsky, Orchestra del Maggio Musicale Fiorentino, Leonard Warren, James McCracken, Ugo Savarese, Nicola Filacuridi, The Metropolitan Opera Orchestra, Fausto Cleva, Emilia Cundari, Renata Tebaldi, Helen Vanni, Osie Hawkins
- Lorenzo Alvary, George Szell, Thelma Votipka, Maxine Stellman, Emanuel List, Hertha Glaz, The Metropolitan Opera Orchestra, Edward Caton, Nadine Conner, Walter Olitzki, Ludwig Burgstaller, Thomas Hayward, Emery Darcy, Thelma Altman, Lillian Raymondi, Alessio De Paolis, Lodovico Oliviero, Mona Paulee, Irene Jessner, Jarmila Novotna, Gerhard Pechner, Anthony Marlowe
- Lorenzo Alvary, Thelma Votipka, Alessio De Paolis, Sir Thomas Beecham, Mack Harrell, The Metropolitan Opera Orchestra, Licia Albanese, George Cehanovsky, Lily Djanel, Leonard Warren, Helen Olheim, Raoul Jobin