Just off the top of my head--the French winning in North America would have had some very interesting effects. First, we (us Yanks) would mostly be speaking French, which would creat a huge disconnect between the folk music of the British Isles and North America. Of course there would still have been lots of (maybe more because of religion) Irish immigrants and English, too, so the language issue would have been complicated. And imagine the number of song variants with translations of variants and macaronic variants. I imagine the American French would not be nearly so picky about their language as the contenintal French are, so dialects might have sprung up, too. (And maybe we would have learned our international lesson after Dien Bien Phu!)

David