This music is composed by Georges BizetRelative level of fame is: 31602
Nadirs aria "Je crois entendre encore", towards the end of act 1, is written on a barcarole rhythm, with a dominant cor anglais whereby, says Lacombe, "the listener has the impression that the horn is singing"
https://en.wikipedia.org/wiki/Les_p%C3%AAcheurs_de_perles