- Alessandro Bonci, Giuseppe Anselmi, Lina Cavalieri, John McCormack, Rosa Ponselle, Giovanni Zentella, Maria Sammarca, Ferdinand Ansseaau, Mattia Battistini, Claudia Muzio, Enrico Caruso, Elisabeth Rethberg, Richard Tauber, Rosa Raisa, Aureliano Pertile, Emmy Destinn, Alfred Piccaver, Florence Easton, Antonio Cortis, Dmitri Smirnov, Anne Roselle & Giovanni Martinelli
- Tito Schipa, amelita Galli-Curci, Mafalda Favero & Giuseppe Antonicelli
- Jussi Björling, Robert Merrill, Enrico Caruso, Joan Hammond, Lawrence Tibbett, Lily Pons, Marian Anderson, Luisa Tetrazzini, Heddle Nash, Beniamino Gigli & Titta Ruffo
- Jonel Perlea, Boris Christoff, Bruna Rizzoli, Coro del Teatro dell'Opera di Roma, Fedora Barbieri, Jussi Björling, Leonard Warren, Mario Carlin, Plinio Clabassi, Rome Opera Orchestra & Zinka Milanov
- Virginia Zeani