- Hartje Mueller, Carlo Bergonzi, Fernando Iacopucci, Francesco Molinari-Pradelli, Júlia Hamari, Thomas Schippers, Robert El Hage, Giorgio Tozzi, Oliviero de Fabritiis, Leontyne Price, Shirley Verrett, Robert Merrill, Erich Leinsdorf, Reri Grist, Laura Londi, Corinne Vozza, Orchestra of the Rome Opera House, RCA Italiana Opera Orchestra, RCA Italiana Opera Chorus, John Newton, Arturo Basile, Ezio Flagello, Daniel Guss, Mario Sereni
