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