Couldn't find anything terribly valuable, neither. But it might be an idea to keep an eye on theRuby Murray Home Page, as it seems to be updated with lyrics and mp3s; a 1 minute sample of 'Rathfriland...' being available
here., as IanC has pointed to in that link that Malcolm provided.

Sorry...but that's about all I can see of worth out there, at the minute.

B.