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