One little coda to this thread. The great (?) Matt Armour (get your CD, only a tenner) has informed me from his position of superlative experience, knowledge and Scottishness that the song performed by Mr. Carthy on Shearwater was collected by him from Peggy Seeger.

Ms. Seeger apparently took 'Bonny Lass of Fyvie' and gave it the treatment.

Any observations or comments?