- Alfred Piccaver, Richard Tauber, Aureliano Pertile, Giovanni Zentella, Florence Easton, Enrico Caruso, Claudia Muzio, Giuseppe Anselmi, Alessandro Bonci, Antonio Cortis, Mattia Battistini, Anne Roselle, Maria Sammarca, Ferdinand Ansseaau, Giovanni Martinelli, John McCormack, Dmitri Smirnov, Rosa Raisa, Elisabeth Rethberg, Emmy Destinn, Lina Cavalieri
