With retail sales of the O Brother, Where Art Thou? soundtrack exceeding 6.5 million copies since its 2000 release, bluegrass music has re-entered the spotlight as a major American style, spawning huge successes with subsequent albums. Author Stephanie P. Ledgin has captured the rich history of this music in Homegrown Music, a lively, informative book that is perfect for newcomers and devoted fans, musicians, and non-musicians. Though...