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