yann-fañch kemener (april 7, 1957 – march 16, 2019) was a french traditional singer-songwriter. he was born in sainte-tréphine (côtes-d'armor), france. he took part in reviving "kan ha diskan" () in the 1970s and 1980s, especially with erik marchand. he wrote songs from the oral tradition in the breton language.