It's been 14 years since Ken Burns’ controversial documentary Jazz aired on PBS, introducing a general audience to the history of swing music and positioning Louis Armstrong and his peers as figures central to jazz. The first two episodes of the series focused primarily on the music’s development in New Orleans through 1924, shining a light on Buddy Bolden, Sidney Bechet, Jelly Roll Morton, Joe “King” Oliver and Louis Armstrong, all of whose stories become points of departure for large...