I should have named the old tune/song was a Jacobite 'effusion' in Loyal Songs, 1750, beginning "Though Geordie reigns in Jamie's stead.." and is reprinted in Ritson's Scottish Songs, 1794. The chorus is:
For a' that, an' a' that,
An' thrice as muckle's a' that;
He's far beyond the seas the night,
Yet he'll be here for a' that.