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