- Victorio Bacciato, Mario Verazzi, Aldo Protti, Guerrino Boschetti, Giulio Viamonte, Virgilio Tavini, Ruzena Horakova, Norman Scott, Fernando Previtali, Chorus of Teatro Colon, Richard Tucker, Mignon Dunn, Gré Brouwenstijn, Orchestra of the Teatro Cólon
