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