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