I am very fond of this piece, because at the time I found it, Cornish (from the UK region of Cornwall) tunes were harder to find on my side of the Atlantic. It is a dancing tune related to the Bucca, a shape-shifting trickster whose name is cognate with pooka/púca(Irish)/pwca(Welsh). About twenty years ago, a Cornish youth group coreographed their own dance to this traditional tune, and after I grew fond of the tune and adopted it, a mutual friend choreographed a dance for the Fae Troupe with which I performed. I had the opportunity to play this for Peter S. Beagle.