Beautiful song, even though I have no idea if the lyrics are beautiful or morbid, I could see both possibilities from the title.
Their CD "Les Gens qui S'aiment" is from 2018. I don't remember how I found them, but I love that dark sound. I downloaded all of the songs.
I can't find the lyrics either, and it's that intentional "buried" sound that makes it hard for me to translate. This is all I can get, and I didn't get to the end.
Sad joy
(muffle muffle)
Sweet death
(something something) black and white
Arms
muffle muffle muffle
Like the (muffle muffle)
Sad joy
Of pleasure (?)
Sweet death
Between noon and half past
In the cry that (muffle muffle)
There comes (muffle muffle muffle)
Now I can't find one thing about them online except that one song on YouTube, and another song from their 2015 CD also on YT.
From the page that has "Mort Douce":
Mort douce · Gauche Guitare
Les gens qui s'aiment
℗ Trois Jeunes Tambours
Released on: 2018-02-16
Author: Carla Andipatin
Composer: Carla Andipatin
Composer: Thierry Los
Music Publisher: 3JT FILMS