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