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 frequently performed ballet in the repertoire of the Ballets suédois during the 1920s ) and La nouvelle Cythère which was commissioned by Sergei Diaghilev for the ill-fated 1929 season of the famous Ballets Russes , and Sous les ramparts d'Athènes in collaboration with Paul Claudel , as well as several pioneering film scores , including B'anda , in which she used African themes .
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 .