Thanks very much for that, Jim. I'm sure your reference to the radio ballads may well be right and I'll do some research). The adaptation is somewhat careless of anachronism (Adam McNaughton's eponymous song is much used by characters who die thirty years before it will be written!(Don't tell the audience)). Someone suggested that the other song might be by Duncan Williamson, but I've no idea whether this is right, nor can I find it. As for the song you print, many thanks: a verse or two may well come in useful. Has it a tune? Or, rather, of course it has a tune; but where might I find it?