Folk music.

"I’ll tell you one of the things I like about folk music—-it’s real. Folk musicians don’t need to make slick videos with dance routines and sexy women in skimpy outfits to make people like the music. The music stands on its own. The musicians can actually play the instruments, often to a high level of skill, unlike most of the packaged commercial acts you see today. On the other hand, it’s a kind of music that anyone can create, because there is no need for synthesizers and track sampling and all the other technological contrivances they use in popular music. Folk music isn’t “popular” because it’s not designed to appeal to the largest group of people or a particular age group or demographic. I would say that its appeal would be strongest among people who are turned off by mass-market culture."