At one time the Smiths had the only US version of King Orfeo, they spelled it King Orpheo and Kyle Davis Jr. after much deliberation finally decided it was a version of Whummil Bore, but not before he announced he had collected the only US version of King Orpheo--

You think Davis would have learned but it's important to realize that collectors also wanted to publish rare versions- even if they suspected they were fake--

Just as performers of traditional music were expected to exceed their repertoire by producing new music, new CDs etc- of course to do this they got the music from other versions and changed it- attributing it to traditional sources.

R-