Going back to our last Vinyl Night up at The Cove, my Fairlight folk compadre Steve played a track off and LP by Pentangle. 'Willy O' Winsbury' came on and I recognised the tune but all the lyrics were different. That's weird I thought. 

Unbeknown to me a very familiar Fairport Convention song off the 'Liege and Lief' album uses the same melody as the traditional folk song 'Willie O' Winsbury', Richard Thompson having written new words to 'Farewell Farewell'. You live and learn.

Here's the celebrated folk group Pentangle (Jacqui McShee on vocals, with John Renbourn, Bert Jansch guitars, Danny Thompson on bass and Terry Cox drums), with Willie or Willy O.

The video is from a live tv show in 1972 and is really good quality. 

FYI: And the Fairports Farewell version is here.