"Definitions of Folk come and go,"
Not really and a bit of a red herring.
A more or less set definition has remained the same for over half-a-century (if you care to stretch it, since 1836) and has never been re-defined; this will remain until such time until a consensus definition is devised and generally agreed upon.
Most of the suggestions put forward here are based on the established definition
Anybody seriously studying the genre referred to as 'folk music' will find themselves in a great deal of trouble if they ignore that definition and involve themselves in the somewhat directionless morass that is todays 'folk scene'
Jim Carroll
Not trying to open a can of worms - just trying to stick to the set menu