Wiener Akademie Kammerchor, Orchestra of the Vienna State Opera, Hermann Scherchen, Hugues Cuenod, Heinz Rehfuss, Magda László, Hilde Rössel-Majdan, Petre Munteanu, Richard Standen, Eberhard Wächter, Peter Lagger, Elfriede Hofstätter, Kurt Equiluz & Leo Heppe