Have i plugged these before? If not i should have. Listening to them a lot recently, some of the most beautiful post-rocky type stuff i've heard. all vocal led and never gets boring despite being drawn out.

http://www.youtube.com/watch?v=EOhv7TshDUU
(very reminiscent of Part V by Johann Johanson)

http://www.youtube.com/watch?v=84FAL02mzew
(i've definitely plugged this. the build up at 3:00 gives me goosebumps)

http://www.youtube.com/watch?v=4RzUMk9XzpA
(more shoegazy, may appeal more to fans of cocteau twins idk)

you can download most of their stuff for free here. you really should;
http://www.last.fm/music/Matryoshka