Greg Stephens: "I can define what I call folk in terms of observable characteristics."

Not being arsey or anything, but a lot of these discussions become confusing when we are discussing music - and there are no illustrations or examples.

In fact I posted a thread earlier which asked a very similar question (What is 'Folk Character'), though not many people responded. The 1954 definition refers to 'folk character', and similarly there has been mention here of Peter Bellamy's own use of the term 'Folk Idiom'. Yet I'm not sure I personally know what either of these terms actually mean!

So, how would you describe 'observable folk characteristics?'
Or indeed how would anyone else watching this thread for that matter..