I've always found audiences at the vast majority of folk clubs very receptive to a wide range of genres, providing the perfomance is reasonably entertaining. Most audiences would welcome something a bit different from the more expected folk repertoire. I cut my teeth in one of the most demanding folk clubs in the country in the 60s, but even that audience were happy to hear a wide range of genres, even for a full night.

Personally I would find a whole evening of D'Urfey innuendo very entertaining. A heck of a lot of this material actually entered oral tradition. A mixture of D'Urfey and Music Hall would be sheer heaven.