Guest posting at 6.09 am. Yes this looks like sense. But Jim isn't limiting his 'ideal' club to traditional material, he includes the 'style', presumably to accommodate people who wrote their own material.

Another point: The 'tradition' may have been vibrant, but I'm not convinced that all of the 'community' singers were necessarily good, vibrant performers. Given a friendly tavern sing-song, might it not have gone round in turns and would there not inevitably have been some useless person who was tolerated in a spirit of camaraderie? And it seems clear that 'pop' music of the times was taken up and sung by the 'folk'. So it was not necessarily a tradition of singing 'traditional' songs and nothing but.