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