Surely the grammar's wrong, shouldn't the question be...

We've been through that. My original suggestion was Does Folk music exist? - this became Does Folk exist? which makes perfect sense in terms of its usage. Grammatically it's like asking Does Jazz exist?, or Does Piobaireachd exist? or Does Ambient exist?, the answer to which is an unreserved affirmative. However if one asks does Folk exist as a musical genre in the same way that Piobaireachd and Ambient do?, the answer to which is, of course, Yes but only, it would seem as a Academic Antiquarian Category with Severe Qualifications or as a section in your local friendly HMV store. I'm ignoring here the Designated Folk Scene, which, right now, I hope, is a figment of my fevered imagination...