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