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