I should answer Sidewinder ("But was it Folk PoppaGator, was it Folk music or just Beatle music or maybe both?"), but I'm not sure what to say.

I suppose "maybe both" is the best answer I can come up with.

Reasons it was "folk": The Shieks' good-natured butchering of the "White Album" songs was certainly not anything at all like any pop/rock band's serious attempt to "cover" the same material, and the jug-band instrumentation made for a generally "folk-ish" sound. And, of course, the songs were all completely familiar to the "folk" in the audience.

Reasons it was NOT folk: recently composed pieces of known authorship, not "traditional" (and not ever written to seem traditional).

You decide.

I'm gradually maturing into the state where I can classify music more and more simply, trying to maintain only two categories: music-I-like and noise-I-dislike. Discussions involving other criteria are often interesting (and even worth the effort to participate), but ultimately trivial. The performance in question was definitely enjoyable, but for reasons quite different from the usual ~ it was very entertaining, but primarily as comedy rather than as music.