Ghosts
So Nine Inch Nails.
I think we can all agree that Trent Reznor is one of the only musicians these days. He released a new album Sunday night. It is licensed under the Creative Commons BY-NC-SA license (ie, you can freely share and remix as long as you don't charge money and release your version under a similar license).
It's $5 for high-quality digital copies or $10 for a double CD and high quality digital copies. Or more for more packaging. It's also available on the torrents if you look around. But you should still give Trent five bucks.
It's 36 tracks of instrumental vaguely ambient/noise/classical/rock. It's good. I am especially into tracks 24-29.
It's called Ghosts. You want it.