Came across this gentleman in a collection of Massenet's published letters. Seems to have been primarily a composer of art songs, but I see from Wikipedia that there are three operas, some sacred works, and a smattering of keyboard and chamber compositions. I was hoping for a taste on youtube, but so far, nada.
Works for the stage:
Bataille d'amour
La Mort de Diane
Mahomet
I first (and mostly only) ran into him because of this string quartet set of parts (https://imslp.org/wiki/String_Quartet_No.1_(Vaucorbeil%2C_Auguste)). (IMSLP also has the vocal score of Bataille d'amour, and a few other works.)