"Orphée aux enfers" was the first of Offenbach's major works to have a chorus. In a 2017 study Melissa Cummins comments that although the composer used the chorus extensively as Pluton's minions, bored residents of Olympus, and bacchantes in Hades, they are merely there to fill out the vocal parts in the large ensemble numbers, and "are treated as a nameless, faceless crowd who just happen to be around." In the Olympus scene the chorus has an unusual bocca chiusa section, marked "Bouche fermée", an effect later used by Bizet in "Djamileh" and Puccini in the "Humming Chorus" in "Madama Butterfly".