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