I bought the anthology Jude. I'm not entirely sure what you need to know, but if you want to pm me with your list of questions , fire away.
There are bits of the collection I could happily never listen to again, but they tend to be of operatic delivery and I'm first to admit I'm a bit of a moron when it comes to Fat Ladies singing. That said, I love Owen Brannigan!
Other stuff is not to my taste but it's very definitely folk by the strictest definition -- i.e. kept alive by rendition. Brian Johnson belts out some very AC/DC-esque tunes that I think sit well in the collection -- I'm sure some traditionalists will disagree!