I've deleted the post from someone who was asking about a Breton
wedding song, so I don't remember the name of the poster or the tune . .
The Chieftains have a CD of Breton Wedding Music called, I think,
_Music for a Breton Wedding_ (or maybe _Music for a Celtic Wedding_)
Although Irish, of course, they seem to have done a lot of study of
or jamming with Bretons. Some great bombarde playing! I'd say there's
a good chance your song is on it. If so, you might even get text in
the liner notes. I remember there are translations. Can't remember
if the Breton is printed. It is a Musical Heritage Society disc.