Duparc studied with César Franck at the Jesuit College of Vaugirard. In 1869 he met Franz Liszt and Richard Wagner at Weimar and in 1870 published five songs (Cinq Mélodies, Opus 2). Two of them, “Soupir” and “Chanson triste,” were later incorporated in his collection of songs, written between 1868 and 1884, including eight with orchestral accompaniment. In these songs, Duparc enlarged the French song into a scena, or opera-like scene, and brought to it a poetic sense of musical prosody and a symphonic conception of form. In his youth Duparc wrote two orchestral works, Aux Étoiles (To the Stars) and Lénore, and a motet. He was also keenly interested in Russian literature, planning an opera, Roussalka, based on a narrative poem by Aleksandr Pushkin. About 1890 his creative faculties began to be undermined by doubts, and he thereafter produced little. In a spirit of severe self-criticism, he destroyed nearly all his subsequent works and sketches, together with his earlier unpublished manuscripts and the correspondence addressed to him by Wagner and contemporary poets. During the latter part of his life he was associated with two French Catholic writers, Francis Jammes and Paul Claudel, and composed the song “Testament” (1906–13), the text of which is a prose prayer.