There are a lot of great songs here -- I just threw a couple up without much bothering to say *why* I use them. Without saying why, it just seems like I'm telling you about my favorite songs, and that wasn't the OP's gist.
So, here's a good one, with a "why":
https://www.amazon.com/Recat/dp/B005J57SK6"Recat" is on Ricardo Villalobos and Max Loderbauer's album, Re: ECM.
It is a weird electronic track which begins with hypnotic drums and little electronic pulses, some thrown all the way behind your right and left ears; soon, a melody begins to emerge, almost as if it was underwater, far away — it sounds like a merry-go-around melody, looping, getting closer.
The whole thing is rhythmic, bass-y, with a very interesting sound stage that pops in front and around you, like fireworks.
I tried it on different speakers and amps and while it's always fun to listen to, when the gear is good, you'll forget yourself.