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