I'm gone to June Tabor now to learn this song

JT got hers from the great Bob Roberts - to which she added the Macrame Beat which has been the curse of many the unacommpanied floor singer for decades. It's worth looking the original recording up - not on YouTube, but here's our very own Dick Miles (AKA GSS / Good Soldier Schweik) giving all due respect to the fons et origo of the thing:

While Gamekeepers Lie Sleeping