George... forgive my ignorance... are you saying that the fiddle tune mentioned above by Tim Jaques is not and never was the tune used for the Leslie piece, and that the song you mention from the Scottish literature is a whole different lyric even than the Gaelic translation of Leslie's work? But is the one Tim J mentions the tune for the piece you are talking about? So, it would be that the Scottish piece is entirely separate from Leslie's work? Or do we know if he based his on it in any way?

Please, say more-- assume I know zero, and go from there!

Will you be posting that Scottish piece? If so, maybe in a separate thread but with a clicky here, to it? And, will it include a translation into English?

~S~