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