I listened to :
Dyad 1909
For Now I Am Winter
I'll maybe try the one you listed above next.
Interesting album titles....
and thanks elasticnorseman 
For Ólafur Arnalds - "For Now I Am Winter" is maybe his most accessible album, but I think the shorter EPs "Found Songs" and "Variations of Static" are his most relaxing music (I'm still tracking down a few other albums).
For Jóhann Jóhannsson - "Ibm1401 - A User's Manual" is the most different, but "Fordlandia" is so far my favorite.
He is also in the group Apparat Organ Quartet which is a whole different sound.