Obviously an air! A Skye Air to be exact!
Taken from, yes that’s right, the Skye Collection, once again!
page 159, first tune. There’s a little note off to the side:
That’s right! Enjoy!
What a pretty tune!
Duncan Chisholm / Iain MacFarlane version
As played on Affric, and Magnificent Seven, is this one here: https://thesession.org/tunes/12645