The Glenlivet Strathspey - JS Skinner
This strathspey is by JS Skinner & is named after the single malt scotch whiskey "Glenlivet". In Skinner’s notation he doubles all the D & e notes, this is a fiddle ornament which is sometimes called a scrunch (scots, CB) or a drone or unison. to do these start your pinky a bit flat then quickly bring it to unison with the adjacent open string. If it’s done right it should should sound like a set of highland pipes being inflated.
here’s some more info on this strathspey
Sounds like the original version of this highland: https://thesession.org/tunes/2918