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