Thanks all, for the other versions, links, and background information.

I'm sorry for any errors in the lyrics. I didn't have a printed version; I just took it down listening to Pat Kilbride's album. I'll double check this weekend. (I did check before I posted, but by then I had seen it so many times in such a short time that the errors just didn't jump out at me. )There's definitely a typo in the last line of the 4th verse. (Should be "your fairy steed" not "you fairy steed.") And Ian, your comment is well taken. Since Oisin is mortal, I guess he wouldn't be a fairy poet. I'll give that another listen. Or perhaps you can find the original lyrics. Zhenya