Mousethief...

It is capitalized in the version I saw....Lagan stream. I've always wondered about that, and "lennon-shee" as well. So maybe there is a stream called Lagan. The dict. claims lagan means goods thrown into the sea with a bouy attached so they can be found again....a bit of a stretch to fit THAT into the song! On the clicky version above there is a sort of explanation about the lennon thing....from the gaelic...can't remember exactly because it wasn't very satisfying...

Also....this version says this is fairly modern, probably an art song of the last century....I cannot believe it...such a modal, ancient tune, and words as well....I've always loved it "...and even when the beetle horn has lulled the eve to sleep..." .sheer poetry...

Mudlark