- Rafael Kubelík, Raymond Nilsson, Marian Nowakowski, John Lanigan, Chorus of the Royal Opera House, Gré Brouwenstijn, Forbes Robinson, Michael Langdon, Ramón Vinay, Orchestra of the Royal Opera House, Noreen Berry, Otakar Kraus
- Virgilio Tavini, Fernando Previtali, Chorus of Teatro Colon, Richard Tucker, Giulio Viamonte, Norman Scott, Mignon Dunn, Victorio Bacciato, Orchestra of the Teatro Cólon, Ruzena Horakova, Mario Verazzi, Aldo Protti, Guerrino Boschetti, Gré Brouwenstijn
