Thanks for the links at the beginning of your post OP, I'll be sure to check them out.
I came here to link to the album by Stellardrone that I discovered on another one of these threads, and I see it was already mentioned
Can't get much more space music than this:
http://stellardrone.bandcamp.com/
Light years is the best album. But Echoes is also excellent.
Light Years by Stellardrone is A M A Z I N G - I absolutely love it. You can stream it from Youtube or Bandcamp, and even though it's free I play it so much while exploring in Elite that I bought it off Bandcamp (you can pay as much or as little as you like).
Just beautiful, and perfect for this. I was playing it when I finally reached the core of the galaxy and made the final jump to Sagittarius A*
Goosebumps
check it out, buy it if you can