"In Jelly Roll Blues: Censored Songs and Hidden Histories, Elijah Wald takes readers on a journey into the hidden and censored world of early blues and jazz, guided by the legendary New Orleans pianist Jelly Roll Morton. Morton became nationally famous as a composer and bandleader in the 1920s, but got his start twenty years earlier, entertaining customers in the city's famous bordellos and singing rough blues in Gulf Coast honky-tonks. He recorded...