I can’t decide whether Alcest is Shoegaze, Depressive Metal, or some offshoot of the RenFaire school of ProgRock (more long-forgotten French prog band Manticore than Jethro Tull). Here’s “Beings of Light,” which features a female lead singer rather the usual metal “screaming with a mouthful of gravel” that seems to have become standard in the genre, which they do on some of their other songs.
Whatever it is, it’s interesting enough to be worth a listen.