New Orleans provides a very good source of the interactions being discussed. The various English and other roots of St James Infomary have been well documented(both lyrically and melodically). The old English song family of the various versions of the Derby Ram seriously affected the 12 bar structure of early blues (eg Frankie and Johnny, White House Blues etc); the song also turned (in a quite different direction) into the famous New Orleans funeral piece Didn't he Ramble. Jelly Roll Mortton made a recording|(for Alan Lomax) demonstrating how European quadrille structures in dance music were processed by black string bands into the early jazz/ragtime classic Tiger Rag. Reg Hall recorded the N O violin player Louis James playing a quadrille, as a more modern example of this genre.
There's a bit to be going on with!