- George Szell, Ezio Flagello, The Cleveland Orchestra, Florence Koppleff, Sara Endich, Ernst Haefliger
- Norman Scott, Marie Janger, Giorgio Tozzi, Carlo Bergonzi, Frank Guarrera, Ezio Flagello, Robert Nagy, Zinka Milanov, The Metropolitan Opera Orchestra, Dimitri Mitropoulos
- Enzo Sordello, Luisa Malagrida, Ezio Flagello, Mariano Caruso, Richard Karp, Coro Accademia Filarmonica, Ochestra Sinfonica di Roma, Pierre Duval
- Arnold Gamson, Orchestra of the American Opera Society, Richard Cassilly, Ezio Flagello, Giulietta Simionato, Laurel Hurley
- Laura Londi, Corinne Vozza, Ezio Flagello, Erich Leinsdorf, RCA Italiana Opera Orchestra, Fernando Iacopucci, Francesco Molinari-Pradelli, Hartje Mueller, Carlo Bergonzi, Oliviero de Fabritiis, Leontyne Price, Daniel Guss, Mario Sereni, Júlia Hamari, Orchestra del Teatro dell'Opera di Roma, Reri Grist, Arturo Basile, John Henry Newton, Shirley Verrett, Robert Merrill, Giorgio Tozzi, Thomas Schippers, Robert El Hage