Symposium

Philharmonisches Orchester, Berlin, Mitgl. Der Kapelle der Staatsoper, Berliner Philharmonisches Orchester, Lucern Festival Orchestra, Orchestra of La Scala, Milan, Bruno Walter, Otto Klemperer, Erich Kleiber, Wilhelm Furtwängler, Arturo Toscanini

Heinrich Knote, Julius Bochnícek, Selmar Cerini, Julián Biel, César Vezzani, Léon Campagnola, John O’sullivan, René Lapelletrie, Antonio Paoli, Giuseppe Borgatti, René Maison, Petre Munteanu

Leo Slezak, Elsa Bland, Sophie Sedlmair

Rosa Ponselle (soprano), Studio pianist, Margherita Grandi, Beniamino Gigli (tenor), Vito Carnevali, Ivor Newton, Los Angeles Philharmonic Orchestra, BBC Symphony Orchestra, BBC Opera Chorus, BBC Opera Orchestra, Erno Rapee, Sir Adrian Boult, Stanford Robinson

Leonard Bernstein

Fernando De Lucia (tenor), Angela De Angelis (soprano), Vida Ferluga (alto), Antonio Armentano (bass)

Peter Dawson (baritone), Karl Jorn (tenor), Frieda Hempel (soprano), Charles Hackett (tenor), Marie Rappold (soprano), Walter Soomer (baritone), Jacques Urlus (tenor), Maria Delna (contralto), Antoinette Laute-Brun (soprano), Rosa Olitzka (contralto), Blanche Arral (soprano), Pierre-Aurele Asselin...

Eugenia Burzio (soprano), Emma Carelli (soprano), Ester Mazzoleni (soprano)

Albert Roussel (narrator)

Berlin Staatsoper Orchestra, members, Vienna Symphony Orchestra, Berlin Symphony Orchestra, RIAS Symphony Orchestra, NBC Symphony Orchestra, Pan American Chamber Orchestra, Fritz Zaun, Anton Konrath, Clemens Schmalstich, Ferenc Fricsay, Arturo Toscanini, Nicolas Slonimsky

Giuseppe Anselmi (tenor), Leopoldo Mugnone (piano)