- Armando Benzi, Gabriele Santini & Orchestra Sinfonica Di Torino Della RAI
- San Francisco Opera & Gaetano Merola
- Beniamino Gigli, Josef A. Pasternack, Josef Pasternack Orchestra, Nathaniel Shilkret, Nathaniel Shilkret and His Orchestra, Rosario Bourdon, Studio Orchestra, Rosario Bourdon and His Orchestra, John Barbirolli Orchestra, Sir John Barbirolli, Franco Ghione, Milan La Scala Orchestra, Staatskapelle Berlin, Bruno Seidler-Winkler, Dino Olivieri, Walter Goehr, Lawrence Collingwood, Luigi Ricci, Milan Chamber Orchestra & Rainaldo Zamboni
- Bertil Alstergård, Stockholm Royal Opera Orchestra, Erik Saeden, Kerstin Meyer, Stockholm Royal Opera Chorus, Sture Ingebretzen, Herbert Sandberg, Hjordis Schymberg, Jussi Björling, Hugo Hasslo, Olle Sivall & Ingeborg Kjellgren
- 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
- Renata Tebaldi, Arturo Basile & Orchestra di Roma della RAI
- Tullio Serafin & Orchestra of the Rome Opera House