With no offence to anyone on this thread, I have come to detest the term 'folk music'.

Folk songs have informed and thus helped me write the non-folk stuff I do these days. They are songs from my past that my grandfather taught me. But he played harmonica, piano and had a wonderful tenor voice. He sang songs he liked. That's all. He was never hung up on what 'kind' of song it was. His musical tastes were many and varied. IMO, he would not have understood what all the arguing is about.

BTW, he was English--from the UK.