- Marcello Giorda, Mario Filippeschi, Lina Pagliughi, Virgilio Gottardi, Roberto Bruni, Anna Maria Rovere, Orchestra of the Rome Opera House, Tullio Serafin, Giulio Neri, Giuseppe Varni, Tito Gobbi
- Adelio Zagonara, Paolo Silveri, Giuseppe Conca, Vincenzo Bellezza, Maria Huder, Gino Conti, Adriana Guerrini, Orchestra of the Rome Opera House, Luigi Infantino
- Enrico Caruso, Vincenzo Bellezza, Walter B. Rogers, Francis Lapitino, The Victor Orchestra, Josef Pasternack