Bonnie, I know, but that's not the one I was refering to. I should have said the Neals' 'A Collection of Celebrated Irish Tunes', Dublin [1724 ?]. A different work: O'Sullivan misdated a fragmentary collection of Carolan's tunes as 1721 instead of c 1742 as Bonnie has noted. Sorry about 'plangsty', which I took from an index where it is spelled wrong. There are 2 'planksty' in the Neals' c 1724 book. Also in it is "Plea Rarkeh (na Rourkough)", the 'plearaca' that Bonnie noted in her first post.