"The music is full of influences from the Northern Isles. The polka Shapinsay, for instance, is a popular one in the area, and Fara seem to inject a gentle Appalachian flavour…" From http://www.folkradio.co.uk/2016/10/fara-cross-the-line/
This is by the late John (Jackie) Sinclair and published by me in the book of Shapinsay music called ‘The Sound of the String’. The harpist Alison Kinnaird recorded it, too. Both of these versions were undotted, but that’s not to say Fara’s version is wrong - Jackie would have been delighted by this.