I lurk on the ClassicalNet list and got a snippet from there today *, from the contributor Deryk Barker, about the folk-song Star of the County Down. The John McCormack version is the best I know of. If I now understand this, the tune comes from a lot earlier and can be known as Dives and Lazarus. Vaughan Williams used it in a set of variations under this title – I will have to get hold of this piece.
* CLASSICAL Digest – 1 Feb 2007 to 2 Feb 2007 (#2007-19)
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