 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".The orchestra at the Bouffes-Parisiens was small – probably about thirty players.The 1858 version of "Orphée aux enfers" is scored for two flutes (the second doubling piccolo), one oboe, two clarinets, one bassoon, two horns, two cornets, one trombone, timpani, percussion (bass drum/cymbals, triangle), and strings.