Henryp, Nigel’s various great collections have only appeared in much more recent times.
I was referring to when he first published it in his Session Tune books in 1999, which many ALP Scots Music Group students would have bought, myself included. It appears in Session Tunes Book 2. In the introduction to the book, Nigel says:
“The second collection of session tunes is slightly different from the first booklet. As well as the standard tunes popular in sessions, we are fortunate to be able to include some more recent compositions. We’ve had contributions from world-famous musicians such as Jay Ungar, the illustrious American fiddler,……”
And at the back of the book, he has further notes, including details of how the tune came about, as detailed in other posts above, the famous quote from Ungar himself - “he sometimes introduces it as -a Scottish lament written by a Jewish guy from the Bronx -…. (See also RA’s comment!)
Nigel further goes on to record his gratitude for Jay’s permission to publish it, and to say that “this beautiful air has captured the hearts and imagination of musicians from all around the world”.
Why am I telling you all this? Just felt the need to clarify that Nigel knows what he’s talking about, and gave all the correct details in his FIRST publication of the tune. What he has put on his website and into his various collections since is fine by me and many others who use this valuable resource.