Also, my (ropey as fuck) version (
here) of Bonnie's cheating a bit - it's one of those songs that sort of belongs to Scotland, but is more of a nursery rhyme than the sort of thing that I'd consider 'properly' folk (whatever that means).
I don't mean to dismiss Roberts and the like - they make some great stuff, and folk music dies if people don't make new songs in the style of, I just think it's a shame to reduce the folk music of the whole of Scotland to a relatively limited thing. That Ben Reynolds thing is a really good example of the distinction - he's playing in a very international folk style that has more to do with the Anglo-American boom in the 60s than it does to do with traditional Scottish music.