His first public recognition as a composer was in Paris where F. Motte-Lacroix premiered works in a concert on April 15th 1921. The concert was a huge success and critics, especially E. Vuillermoz from the newspaper Le Temps, who wrote in detail about the concert. After this concert, his name was heard as well and as often as his French contemporaries Ravel, Debussy, Satie, etc., and Mompou became a public figure in the high Parisian society for many years.
Mompou was a quiet, timid and introverted man, with many communication problems and the arrival on the scene of new music, especially the second school of Vienna, provoked a creative crisis in 1933.
Once again he returns to Barcelona in 1941, fleeing from war (he would remain in Barcelona until his death). In Barcelona he met the young pianist Carmen Bravo, who would later become his wife. He began to compose again, beginning a long period of creativity that lasted until 1979, when health problems stopped him from composing permanently.