I have always had a strong feeling that radio programmes that are described as folk should always make an effort to include a reasonable percentage of what you might call traditional, source singers or whatever(and players). there are untold recordings available. Then the casual drop-in listener at least has a chance to be exposed to the basis of the music, even if it may not be as "accessible" as some more processed and polished performers. That's what I feel will be more likely to turn on the performers, and audiences, of the future.