Don't know the source Darren.
There's another John Bowie acetate "Help me pretty baby", very uptempo, not great though.
Also a different demo of the above track, off acetate, much better.
Here's the full blurb...
I have a 10 or 12" acetate (can't remember the size) with this on and the "Good Thing" Version, also a track called "Bad Luck" which is ok. The first take on the CD I have which I think is better than the 2nd take. The 2nd take sounds a bit contrived almost like some instrumentation has been added as an after thought...