At the Bampton Folk Festival, I asked one of the organisers if they knew of any festivals in France that I might go to. He came up with The Festival des Chanteurs de Rue (Buskers Festival) of Quintin which takes place in November.
According to Travelmax it’s all happening 11th - 12th November, 2006
The beautiful half-timbered streets of Quintin host this fun festival during which the ambience of the pleasure-loving Belle Epoque (1890-1914) is recreated by street vendors, singers and actors. Visitors can sample such local delicacies as cod fricassé, roasted chesnuts, crêpes and celebrated bolée de cidre (bowl of cider) while singers, strolling players, word and tunesmiths interpret timeless Breton songs with choruses that the crowd enthusiastically participate in.
The Festival des Chanteurs de Rue (Buskers Festival) of Quintin is held at the same time as the Saint-Martin fair, which dates back to the 15th century.
Sounds pretty tempting to me and, from the AA routefinder, it’s only 108 km from the ferry at Roscoff, France.
As far as I know, Bampton Folk Festival was the last English Folk Festival of the year, perhaps it’s time to start working on the French one’s 
