In the Blue Ridge, every county has its own musical heroes and history. The music of Surry County, N.C., is so popular among old-time music fans worldwide that if you visit a jam session in Barcelona or Tokyo, you’re likely to hear a fiddler play “Sally Ann” or “Breaking Up Christmas” in the Surry County style. And you can hear Surry’s style firsthand at the Historic Earle Theatre, in downtown Mount Airy.