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