Re the third line of the first verse: I listened to this recording again. I can't really make out another word other than fairy. Maybe "fair-haired" or "fair, he"? In terms of singing it, you can actually just leave this word out and the line still scans okay. (Hold the second syllage of "Oisin" out longer, as is done in the third line of the second verse.) Sorry I can't add much here; perhaps someone else will eventually come up with it. Zhenya