Ray
Whatever this mysterious "wider definition of folk song" is (nobody has yet explained or even agreed what it is, unless you can define it and show it to be as culturally and historically important as folk song as researched and internationally accepted , your only reason for promoting it has to be an opportunistic one of putting bums on seats
That is cultural vandalism of the most basic kind
"Hostile takeover by whom?"
By those who don't give a toss about people's culture - that's whom
Jim Carroll