I learnt this by ear and transcribed it (with help from Jim o’Toole) from the Wrigley sisters album Idiom, the track is credited to the Garson Trio. Great tune the last part is hard for me as it has a position shift but maybe the tune could be played in G. It don’t think its a polka as allowed by this site but a march.
"the track is credited to the Garson Trio."
I believe Jimmy Garson composed the tune. Jimmy was the fiddler with the trio. I mind him well.
The tune was also known as "Skae Brae" (not to be confused with "Skara Brae", which has also been called "Skea Brae"). The place referred to is in Sandwick, Orkney. Up by where the Garsons stayed.