Tailleferre wrote many of her most important works during the 1920s, including her 1st Piano Concerto, The Harp Concertino, the Ballets "Le Marchand d'Oiseaux" (the most often performed ballet in the repertoire of the Ballets Suédoises during the 1920s) and "La Nouvelle Cythère" which Diaghilev had asked her to write for his ballet company.