I love Tri yann as well.As I was in Brittany last summer,record shops were full of their stuff and it looked quite recent.Breton music is among my favourites,i just have a problem with the french taste for most the productions - putting barbie dolls to sing,like Dan ar Braz does,or very fake keyboards....Are you shore you can't get a word of what the songs say?!Breton sound like something you heard(english,french and latin)without quite being it...I find it such a fascinating culture,and their music sounds like shaped on the breton landscape.