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