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