- Rosa Raisa, Anne Roselle, Giovanni Martinelli, John McCormack, Dmitri Smirnov, Claudia Muzio, Alessandro Bonci, Alfred Piccaver, Richard Tauber, Aureliano Pertile, Giovanni Zentella, Maria Sammarca, Ferdinand Ansseaau, Antonio Cortis, Mattia Battistini, Emmy Destinn, Lina Cavalieri, Rosa Ponselle, Elisabeth Rethberg, Florence Easton, Enrico Caruso, Giuseppe Anselmi
- Anna Kaskas, Carlo Morelli, Wilfred Engelmann, Giordano Paltrinieri, Nicola Moscona, Bruna Castagna, Héctor Panizza, The Metropolitan Opera Chorus, Louis d' Angelo, Zinka Milanov, The Metropolitan Opera Orchestra, Carlo Coscia, Giovanni Martinelli
