I know just what it is, it's Bernard Benoit, and it's called "Lutunn Noz." The album came out in 1975 and was originally on the Musical Heritage Society label (a little tricky to get in the first place), but now it is available on CD on a label called Arion (ARN 64484). Unfortunately they tinkered with the original format and wove in some "bonus" tracks which aren't really a bonus, but the old beauties are still there. The song you like (I play this on my guitar too, along with two others from the album) is "L'Heritiere de Keroulaz" and is trad. (Breton) arr. Benoit. These really are beautiful tunes. I don't remember where I tracked down the CD but I can poke around and look for you. Cheers, Margaret