Thanks everyone, lot's of suggestions and help there for me to investigate.
Funnily enough it was Tuesday's edition of Jools Holland and Emmylou's stunning performance that prompted to post.
Wrecking Ball is something I've heard stuff from, not quite acoustic but I thought it was great, so perhaps I'll widen my search.
The Amazon suggestion is a good idea and so obvious I never gave it a thought!
Nanci Griffith is someone who sits in my collection already, but thanks for the heads up anyway.