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