Following after his father who was a teacher at the Malherbe secondary school and the organist at the Church Saint-Étienne in his home town, Dupont began his studies at the Paris Conservatory at the age of 15.
In 1903, Dupont composed a cycle of fourteen pieces for the piano, Les Heures dolentes, during his convalescence from his first bout of tuberculosis – the disease that would ultimately cause his death at the age of 36.
[1] While residing at Cap Ferret, in a small island refuge for tuberculosis patients, he composed another cycle of ten pieces for the piano, La Maison dans les dunes (1908–1909).
Antar was performed after Dupont's death in a grandiose and exotically dark production at the Opéra Comique in March 1921.
Dupont's "Poème", "Journées de Printemps", as well as selections from "Heures dolentes" and "La Maison dans les dunes", were recorded by Marie-Catherine Girod and the Pražák Quartet and released on the Mirare label in 2014.