- Júlia Hamari, Laura Londi, Corinne Vozza, Ezio Flagello, Hartje Mueller, Carlo Bergonzi, John Newton, Oliviero de Fabritiis, Leontyne Price, Daniel Guss, Mario Sereni, Shirley Verrett, Robert Merrill, Erich Leinsdorf, RCA Italiana Opera Orchestra, Orchestra of the Rome Opera House, Reri Grist, Arturo Basile, Giorgio Tozzi, Thomas Schippers, Robert El Hage, Fernando Iacopucci, Francesco Molinari-Pradelli
- Mildred Allen, Kurt Herbert Adler, Louis Sgarro, Calvin Marsh, Gabor Carelli, John Trehy, The Metropolitan Opera Orchestra, Helen Vanni, Cesare Valletti, George Cehanovsky, Licia Albanese, Mario Sereni, Lou Marcella