One of my favorite things about Sigur Rós is how much they leave their music open for interpretation. The ethereal quality can lend itself to be an accompaniment for nearly any genre, story, or emotional state. It makes them ideal music for the writer looking for mood music to help the writing process, and makes them a go to for me for so many projects.
For a different look at Ekki múkk, check out this music video, featuring Littlefinger himself Aidan Gillen and Shirley Collins. A warning, though: this video might break you.