- Orchestra Sinfonica Di Roma Della RAI, Herta Wilfert, Eberhard Wächter, Artur Rodziński, Murray Dickie, Dezsö Ernster, Gré Brouwenstijn, Karl Liebl, Alois Pernerstorfer
- Rafael Kubelík, Raymond Nilsson, Forbes Robinson, Noreen Berry, Otakar Kraus, Marian Nowakowski, Gré Brouwenstijn, Ramón Vinay, John Lanigan, Orchestra of the Royal Opera House, Michael Langdon
- Chorus of Teatro Colon, Richard Tucker, Mario Verazzi, Mignon Dunn, Ruzena Horakova, Norman Scott, Giulio Viamonte, Orchestra of the Teatro Cólon, Victorio Bacciato, Fernando Previtali, Virgilio Tavini, Gré Brouwenstijn, Aldo Protti, Guerrino Boschetti