Edelmiro Arnaltes, Alfredo Kraus, Roberto Paternostro, Sona Ghazarian, Renato Bruson, NHK Chamber Soloists, Rundfunk-Sinfonieorchester Berlin, Tokyo Philharmonic Orchestra, Giovanni De Angelis, Tokyo Symphony Orchestra, Roberto Scandiuzzi, Mariana Nicolesco, Stefano Rinaldi-Miliani, Giuseppe Sabbatini & Lucia Aliberti
Beniamino Gigli, Josef A. Pasternack, Josef Pasternack Orchestra, Nathaniel Shilkret, Nathaniel Shilkret and His Orchestra, Rosario Bourdon, Studio Orchestra, Rosario Bourdon and His Orchestra, John Barbirolli Orchestra, Sir John Barbirolli, Franco Ghione, Milan La Scala Orchestra, Staatskapelle Berlin, Bruno Seidler-Winkler, Dino Olivieri, Walter Goehr, Lawrence Collingwood, Luigi Ricci, Milan Chamber Orchestra & Rainaldo Zamboni
Beniamino Gigli, Cloe Elmo, Dino Olivieri, Giuseppe Noto, Lawrence Collingwood, Maria Caniglia, Ricci Ricci, Studio chamber orchestra, Studio Orchestra & Umberto Berrettoni
Giacomo Lauri-Volpi, The Metropolitan Opera, Professori d'Orchestra Del Teatro Alla Scala, Grande Orchestra, Rosario Bourdon, Giulio Setti & Franco Ghione\Mario Cordone
Alberto Erede, Renata Tebaldi, Swiss Romande Orchestra, RAI Symphony Orchestra, Milan, Nino Sanzogno, Orchestra del Teatro alla Scala di Milano, Arturo Toscanini, Arturo Simonetto, Carlo Bergonzi, Mario del Monaco, Dimitri Mitropoulos, Fiorentino Maggio Musicale Orchestra, Silvio Maionica, Hans Beirer, Karl Böhm, San Carlo Theatre Orchestra, Gaetano Merola, San Francisco Opera Orchestra, Giuseppe di Stefano, Carlo Maria Giulini & RAI Symphony Orchestra Rome