- Giuseppe Valdengo, Arturo Toscanini, NBC Symphony Orchestra, Herva Nelli, Richard Tucker, Eva Gustavson
- Norman Scott, Marie Janger, Giorgio Tozzi, Carlo Bergonzi, Robert Nagy, Zinka Milanov, The Metropolitan Opera Orchestra, Dimitri Mitropoulos, Frank Guarrera, Ezio Flagello
- Victorio Bacciato, Chorus of Teatro Colon, Richard Tucker, Mario Verazzi, Fernando Previtali, Mignon Dunn, Giulio Viamonte, Virgilio Tavini, Norman Scott, Aldo Protti, Guerrino Boschetti, Orchestra of the Teatro Cólon, Gré Brouwenstijn, Ruzena Horakova
- Orchestra del Teatro La Fenice di Venezia, Gertrud Grob-Prandl, Norman Scott, Franco Capuana, Antonio Spruzzola-Zola, Renata Ferrari-Ongara
- Mildred Allen, Margaret Roggero, Norman Scott, Leonard Warren, George Cehanovsky, Thelma Votipka, Gabor Carelli, Roberta Peters, Eugenio Fernandi, Fausto Cleva, Madelaine Chambers, The Metropolitan Opera Orchestra, Calvin Marsh, Louis Sgarro, William Wilderman
- Tullio Gagliardo, Mignon Dunn, Italo Pasini, Norman Scott, Flaviano Labò, Lucille Udovich, Luisa Bartoletti, Aldo Protti, Carlo Felice Cillario
- Mildred Allen, Irene Dalis, Georg Solti, Norman Scott, Marko Rothmüller, Leonie Rysanek, Hermann Prey, Hans Hopf, Robert Nagy, Paul Franke, The Metropolitan Opera Orchestra