I might start attending this monthly, this particular show featuring musical artists Portraits, Danny Paul Grody, Barn Owl and Daniel Higgs:
Also, it's hardly "Film as Folk Art," but this is my most anticipated film realease ever:
http://www.popmatters.com/pm/feature/126160-the-calm-before-the-tree-of-life
I wish underground independent films were as easily accessible and as abundant as underground music is. I'd post more.