Billie Holiday, one of the greatest voices of all time, was always controversial - a proud black woman who preferred white audiences, an exploited artist and a violent drug addict, a loyal friend and a vindictive lover, a blues singer who didn’t sing the blues, and when she sang the seminal protest song Strange Fruit, an enemy of the state. Her enigmatic accounts of her own life were a mix of half truths and free-form improvisations. Then, in 1971, journal...