There's a good few obscure and just mainstream-obscure artists here, and a lot of tasty eargum (I liked SamGreen's list). But to me, underappreciated means, working in a total veil of obscurity, or the "rejected unknown", producing absolute nuggets of gold that barely anyone has ever heard. Or I would say that, except Daniel Johnston has made some really terrible songs, too. Part of his charm is that he's out there making this music for only himself, really. He's just a sorry entertainer, a retired boxer, a monkey in zoo, in any case.
I don't really know how to describe his music properly. I recommend the documentary on him from a few years ago, Devil and Daniel Johnston
, describing his music as it's incredibly direct, raw, and real. I, for one, did not like him much at all the first time I heard him, and didn't even really appreciate him for a year. It's, lo-fi folk, indiepop songwriting genius.Story of an Artist
(1983)Walking The Cow