RAI Orchestra, RAI Chorus, Wolfgang Rennert, Montserrat Caballé, Siegmund Nimsgern, René Kollo, Kurt Moll, Oralia Dominguez, Oliviera Miljakovic, Carlo Gaifa, Renato Borgato, Leonardo Monreale, Jeannette Scovotti & Lucia Falcone
Vienna Friends of Music Society, Herbert von Karajan, Eugenia Ratti, Oliviero de Fabritiis, Arnold Mill, Cornell MacNeil, Giulietta Simionato, Carlo Bergonzi, Fernando Corena & Renata Tebaldi