Robert Burns' statement that the Irish had a song and tune "The Weaver and his Shuttle, O' (Interleaved Scots Musical Museum), with the tune the same as the Scots "Jockey's gray breeks" has never been verified. I checked the tune code of "Jockey's gray breeks" against the tunes in the Irish tune idnex on my website, but I can find no match under any title. There's a weavers song in Horncastle's 'Music of Ireland' 1844, but the tune isn't "Jockey's gray breeks".