By 1936, he was on top of the world. He became a Chevalier of the Legion of Honour for his artistic contributions as a musician, and he traveled widely, performing in most of the major European cities, which included several performances and recordings in London. In 1938, he was invited to play at the Tanglewood Festival held in the United States for two weeks; both Blanche and Louis went with him as the Trio also had been invited by Arturo Toscanini to play on the NBC Radio in New York.