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