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