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