Not quite; he heard it in London, and described it as "Scotch", which probably referred to the style rather than the provenance. Nobody knows whether it started out in Scotland or England.

Scottish music had a significant input into Old Time and, later, Bluegrass music, certainly; as did English and Irish music (though it's fashionable to downplay the former at the moment) and German and Scandinavian music too, come to that.