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