Conrad, what's the difference between your definition of folk music and hymns? Certainly many groups across the USA gather on Sunday mornings to sing together, part of their "moral social duty." I'm pretty sure the songs will be different in different parts of the country (or different parts of the city for that matter). You will find songbooks in every one, with both music and lyrics. Certainly, there's a living tradition of music within each congregation. The songs are protected and in active use. No beer or food during the performance, though, unless you consider the tiny bit of cracker and wine food.

Anyway, it's been fun, but I'm packing to go on tour. See you in a week if you've managed to keep this thing going.