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