That's a Reynardine tune, but not the one Tony means.  I referred to it recently in the  Reynardine: Info?  thread, and put in links to two other midis, the second of which is very close to the set A. L. Lloyd recorded; Jansch learned it from him.  The tune from Hughes may indeed have been Lloyd's source.

I assume the lost file was an audio recording, though; that's the best I can do for now.  I think the Jansch recording is available on CD nowadays, incidentally.