"This was recorded at Basing Street Studios during the summer of 1976, as part of the Rendezvous sessions, but left off, as it was felt that the album had too many ballads and not enough `rockers'. In retrospect this seems to be one of Sandy's greatest songs. It was posthumously released on the Who Knows Where The Time Goes? box set. It also appears on the Hannibal CD version of Rendezvous.

An alternative version recorded at the same session was released on The Attic Tracks Vol. 1, without the Acker Bilk clarinet solo but with Dave Swarbrick more to the fore and taking the solo."

From: http://www.informatik.uni-hamburg.de/~zierke/sandy.denny/songs/fullmoon.html

Lyrics and tab are there, too, if you need them.