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