Usually, the movie follows the book. But in the case of Kristina R. Gaddy's well-researched, comprehensive chronology Well of Souls: Uncovering the Banjo's Hidden History (Norton), it follows a documentary on the same subject by 14 years.     Bela Fleck & the Flecktones' namesake banjoist and bandleader covered similar territory in 2008 with Throw Down Your Heart. The Sascha … [Read more...]