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