Matthew, many thanks, no appology was needed, just a little clarification.
I actually came across it by accident, a friend of mine put out a C.D. with Sweet williams Ghost on, and I decided perversly to check the accuracy of the version claimed to be used, it was spot on!
Fortunetly I have a copy of the Tea Time Misc.and having found Sweet Williams Ghost continued to read, and discovered A Sheperd Adonis.
The rest you know, the only instance I can think of, of the oral tradition caught in print....facinating!