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