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