In reference to the OP, I just say Sarah Jarosz perform in St. Louis. A surprisingly full house, to her evident delight. Highly recommended: one of those shows that makes you say, "Why don't I see more shows?" As expected, impressive stringdusting, but Sarah also turns out to be a bit of belter on the vocals -- something you don't see everyday in a folkie.
I prefer "Song up in Her Head," but the less folky and more atmmospheric "Follow Me Down" (actually released in 2011 ;) is a very worthwhile record.
John