If it is in a general music genre by listening to it, it is in that genre, and possibly many others.
The tune to a Child ballad was given to both another set of traditional words and simultaneously a hymn by Vaughan Williams. I used the same tune for a punk song back in the late '70s about getting your todger caught in your flies.
The dots look the same on the sheet music for all versions...
Anyway, according to iTunes, Vin Garbutt is country and western. It's all subjective, right, wrong and indifferent.
I'm with Will Fly on this.
I'm calling it the 2016 definition, and repealing the 1954 nonsense because frankly, nobody cares. As Sir Thomas Beecham noted, the English don't appreciate music but they love the noise it makes.