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