He sung most of the leading roles in Italian opera, notably Nemorino, Edgardo, Ernani, Macduff, Duke of Mantua, Alfredo, Riccardo, Alvaro, Carlo, Radames, Enzo, Turriddu, des Grieux, Rodolfo, Cavaradossi, Pinkerton, etc. He made many recordings, notably a recording of Verdi's complete tenor arias. This remains a unique achievement.