For the former, I have stuff like this:
https://play.spotify.com/user/infralite/playlist/0FUJY4gSuBO...
and
https://play.spotify.com/user/infralite/playlist/1SpbGdZGmno...
For the latter, I go for quiet personally, or turn the volume way down and put on something chill that I know really well. When it's familiar my mind doesn't get stuck on the music too much. I like Ephemeris from H.U.V.A Network, or some Boards of Canada or some Darkjazz (like Kilimanjaro Darkjazz Ensemble or Bohren & Der Club of Gore).
Also, counterintuitively, there is a lot of metal that goes well with this too. Here is one example:
https://open.spotify.com/user/infralite/playlist/6xHbGt1MGWa...
I love music suggestions so feel free to reply with some!