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