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