Dont know about songs but many of the traditional song composers of the folk of the lower incomes would never be able to afford to get into or stay long at venues in the contemporary market place- they would be excluded by economic segregation.

This is a bad problem and seems to me is limiting transmission as well as new composition.

They could also not attend the folk conferences either! Probably not be adequately clothed and bathed and be sober enough to be allowed in either. Such is the development and growth of elitism even in the so called folk world.

Conrad