I have just heard Sylvia Barnes's wonderful version of The Colour of Amber (on Boston USA radio WUMB!), and note that it has many more verses that the Mary Ann Haynes version (VotP 11) that I am familiar with (which is also Wonderful)
Looking at the Roud index, I only see Mary Ann's version listed.

So....My question is - Where do the extra verses come from and what are they?? Please!!

Tim Radford