Uist Reel is tune No. 146 in the Ross Ms. (PDF page 180, among some other pipe tunes) and the notes mention that it bears some resemblance to one of the reels in the Patrick McDonald Collection* (No. 17 in the "North Highland Reels or Country Dances" section at the back), as indeed it does.


*Highland Vocal Airs, Country Dances or Reels of the North Highlands and Western Isles, 1784