close to Ravel recognised that he had lost much of his physical and mental stamina. As the musicologist Stephen Zank puts it, "Ravel's emotional equilibrium, so hard won in the previous decade, had been seriously compromised." His output, never large, became smaller. Nonetheless, after the death of Debussy in 1918, he was generally seen, in France and abroad, as the leading French composer of the era. Fauré wrote to him, "I am happier than you can imagine about the solid position which you occupy and which you have acquired so brilliantly and so rapidly. It is a source of joy and pride for your old professor." Ravel was offered the Legion of Honour in 1920, and although he declined the decoration, he was viewed by the new generation of composers typified by Satie's protégés Les Six as an establishment figure. Satie had turned against him, and commented, "Ravel refuses the Légion d'honneur, but all his music accepts it." Despite this attack, Ravel continued to admire Satie's early music, and always acknowledged the older man's influence on his own development. Ravel took a benign view of Les Six, promoting their music, and defending it against journalistic attacks. He regarded their reaction against his works as natural, and preferable to their copying his style. Through the Société Musicale Indépendente, he was able to encourage them and composers from other countries. The Société presented concerts of recent works by American composers including Aaron Copland, Virgil Thomson and George Antheil and by Vaughan Williams and his English colleagues Arnold Bax and Cyril Scott. Orenstein and Zank both comment that, although Ravel's post-war output was small, averaging only one composition a year, it included some of his finest works. In 1920 he completed La valse, in response to a commission from Diaghilev. He had worked on it intermittently for some years, planning a concert piece, "a sort of apotheosis of the Viennese waltz, mingled with, in my mind, the impression of a fantastic, fatal whirling". It was rejected by Diaghilev, who said, "It's a masterpiece, but it's not a ballet. It's the portrait of a ballet." Ravel heard Diaghilev's verdict without protest or argument, left, and had no further dealings with him. Nichols comments that Ravel had the satisfaction of seeing the ballet staged twice by other managements before Diaghilev died. A ballet danced to the orchestral version of Le tombeau de Couperin was given