I knew The Kilimanjaro Darkjazz Ensemble
for their first album, mixing dark ambiances and soft jazz (Twin Peaks style) with some electronics.
But the 2009 album just burry the first one three miles under the ground. Adding "Beth Gibbons style" female vocals (more Twin Peaks style!) gives it some deep and nightly mesmerizing texture.
Just click here to get samples: http://www.adnoiseam.net/adn120 ("Embers" is my favorite one, remebering me the Portishead "Only you" track).
(once again, Ad Noiseam create a musical breakthrough)
This "dark jazz" style seems to be unique to me, but if you have some recommendations, I'll take them!