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