I only mentioned my CV upon belittlement

What you took as belittlement I meant as encouragement. No matter what your qualifications, there is always much to be learnt and much pleasure to be had in the process of learing it. Conclusions are dead ends; definitions likewise, especially for something as essentially undefinable as Folk Music. One would have thought your academic training would have taught you the fundamentals of empirical research so essential to all life's experiences! The more I learn, the less I know. One day, I hope to know nothing at all, but the process of learning only stops at death.

I wonder what use encyclopaedias are for other than taking up much needed book-shelf space & offering very basic & superficial reference. At least Wikipedia is interactive, WAV - see what that has to say about Folk Music - you can always edit out the bits you don't like! But remember - i) always reference your sources, and ii) me doesn't count!