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