RE: Instrumental music like HoL
Barn Owl provides an atmosphere that occasionally goes hand and hand with House of Leaves.
http://www.youtube.com/watch?v=31Dp2MSznbM - Void and Devotion carries with it a lot of eeriness and uncertainty, but doesn’t necessarily categorize in being dark or “evil”.
http://www.youtube.com/watch?v=D6rnNyswOc4 - The Darkest Night of 1683 says a lot in it’s name. It could represent the endlessness of the house as well as the madness it invokes.
http://www.youtube.com/watch?v=yOOLLPnUshA
All of their songs are full of ambiance and atmosphere which I’ve come to associate a lot with just through listening to it, but I don’t suppose that’s difficult with immersive music like this.