> So, yet again, a folk revival favourite turns out to be - at least to some extent - a fake!

Which should tell us plenty about the difference between popular and educated tastes!

Tangentially: there are numerous YouTube recordings of "The Crabfish," including one unison version sung by two or maybe three generations of a nice American family somewhere in Dixie. (The video is called "The Crawfish," even they they clearly sing "codfish")

"Heartbreak Hotel" provides the tune for one singer.