Here the video of a 1965 Swiss TV production of Emile Jaques-Dalcroze's witty light opera "The Twins of Bergamo"
https://www.rts.ch/play/tv/operas/video/musiques-09-05-1965?id=10057816
(The French introduction is short).
It involves singers and dancers (in this production, stars like Eric Tappy and Basia Retchitzka are cast).
The vocal score is available on IMSLP:
https://imslp.org/wiki/Les_jumeaux_de_Bergame_(Jaques-Dalcroze%2C_Emile)
fixed IMSLP link, not lacking the closing paren tal-unit:
https://imslp.org/wiki/Les_jumeaux_de_Bergame_(Jaques-Dalcroze%2C_Emile) (https://imslp.org/wiki/Les_jumeaux_de_Bergame_(Jaques-Dalcroze%2C_Emile)).