Ok so I'm watching Deadwood and this tune starts playing. I'm 99.9% sure it isn't original music because it sounds super familiar but I can't for the life of me identify it. I've literally spent the last hour repeating the same clip while scouring the Internet to no avail.
I finally broke down and recorded it myself on my tv (sorry for the poor quality). Also, please don't sue me HBO.
Oh and SPOILERS if you've never seen Deadwood.
Direct link:
https://youtu.be/UwPgzJ4KhNw