The answer is Le Tombeau de Couperin, which is a work by Ravel, not Dutilleux. Henri Dutilleux is a French composer known for his orchestral, instrumental, and choral works, including "Ainsi la Nuit," "Métaboles," and "Timbres, espace, mouvement."
Master of Modern Harmony: Exploring the Legacy of Henri Dutilleux - An Engaging English Quiz!