- Helen Olheim, Raoul Jobin, Lily Djanel, Leonard Warren, Sir Thomas Beecham, Mack Harrell, Alessio De Paolis, The Metropolitan Opera Orchestra, Thelma Votipka, Lorenzo Alvary, George Cehanovsky, Licia Albanese
- Osie Hawkins, Lawrence Davidson, Rosalind Elias, Daniele Barioni, Alessio De Paolis, George Cehanovsky, Licia Albanese, John Brownlee, Dimitri Mitropoulos, Madelaine Chambers, The Metropolitan Opera Orchestra
- Robert Merrill, Arthur Newman, NBC Symphony Orchestra, John Garris, Johanne Morland, Arturo Toscanini, George Cehanovsky, Licia Albanese, Jan Peerce, Paul Dennis, Maxine Stellman
- Mafalda Favero, London Philharmonic Orchestra, Eva Turner, John Barbirolli, Giovanni Martinelli, Giulio Tomey
- Anne McKnight, Salvatore Baccaloni, NBC Symphony Orchestra, Jan Peerce, George Cehanovsky, Licia Albanese, Nicola Moscona, Arturo Toscanini, NBC Chorus, Francesco Valentino