Once upon a time, about a half-century ago, a lovely red-haired lady made a Fullbright Scholarship tour through England, Ireland and Scotland. Equipped with a tape recorder and a magnificent repertoire of traditional Kentucky songs, she swapped songs with the likes of Ella Ward, Jimmy MacBeath, Seamus Ennis, Jimmy Stewart, Liz Cronin, Dianne Endicott, Johnny Pickering, Sarah Makem and Jeannie Robertson.
And then she blessed us all with an LP that presented these swaps, in the format of direct comparisons of versions of the same songs. THe LP was released in 1954.
Well it's back in CD format, which is just as well, as my LP is worn to the point of being unlistenable. I highly recommend it.
(Yes, CAMSCO carries it, but you should buy a copy even if you shop elsewhere, for some reason or other).