- Otto Klemperer, New Friends of Music Orchestra, John Wummer, Rudolf Kolisch, Dorothy Chester, John Meisner, Edith Weiss Mann, Amsterdam Strings
- Prades Festival Orchestra, John Mack, Alexander Schneider, Gilbert Coursier, Leila Storch, Pau Casals, Marcel Mule, Lucien Thevet, Marcel Tabuteau, Maurice Allard, Fernando Valenti, Isaac Stern, Paul Tortelier, John Wummer
