John Martyn Philentropy Live Album.
Those Island Years! Black Man At Your Shoulder instrumental from the long version.
Found on the promotional Dancing 7'' single. Ripped by some legend on a torrent site, uploaded for you here.
http://curtis8516.tumblr.com/ - RARE PICTURES! If you want the MP3 of this, type in Google 'youtube to mp3' and copy the URL. No copyright infringments ...
Just a great track.