Since colonial times, generations of families from Ireland, Scotland, Wales, and England have settled in Knoxville and East Tennessee. Early on, they arrived with ballads, stories, instruments, and folk music from their former homes. "Songcatchers," including Francis James Child, Olive Dame Campbell, Maud Pauline Karpeles, Cecil J. Sharp, William Francis Allen, Lucy McKim Garrison, Charles Pickard Ware, and George Pullen Jackson, journeyed deep into...