What's your fave "No thoughts, head empty" music to listen to?

I have two moods for this:

One is a playlist composed of most of the library of songs by PVRIS. I don't know why, but their music just really clicks with me; I can listen to that playlist all day with no problems (I usually hate listening to the same song more than once or twice a day).

The other is a playlist of non-combat music from The Elder Scrolls. Really good for gentle background music.