Wikipedia: "It [CKLW] is best known for having been one of the most influential Top 40 stations in the world in the 1960s and 1970s." You can probably read the rest there. Otherwise - Google is your friend.

"Probably a bad idea to mention Windsor in the context of Canadian folk, as Windsor has a culture completely separate from the rest of Canada."

There are, in fact, lots of places in Canada that could be said to have "a culture completely separate from the rest of Canada", and some of them are considered (rightly or wrongly) as bastions of folk music. Oh, let's say, Newfoundland? If Windsor is unique, it is in that it is so thoroughly and determinedly amnesiac regarding its own history and culture, and in its extreme reluctance to celebrate its own. Ever heard of Orlando Bracci, for instance?

Windsor, though, however unique, has every right to be mentioned in the context of Canadian folk.