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