"Paris in the twenties displayed a contradiction. On the one hand, it embraced all of the fads of the roaring decade—music hall, American jazz, sport,
and leisure culture, machine noises, technologies of gramophone and radio, musical corollaries to Cubism, Futurism, Dadaism, Simultaneism, and Surrealism. Yet beneath the ultramodern surface, a nineteenth-century support structure for artistic activity persisted.
Composers still made their name in Paris salons, which survived the general postwar decline of European aristocracy, partly because so many wealthy old families had succeeded in marrying new industrial money."