In 1938, 30 years before the civil rights movement, Benny Goodman, the legendary White jazz clarinetist, brought on stage at Carnegie Hall in New York City a jazz orchestra that included pianists Teddy Wilson and Count Basie, vibraphonist Lionel Hampton, saxophonist Lester Young, and half a dozen other Black musicians. This outrage to the acceptable that demolished segregation, if only for one night, was the starting point of a phenomenon that could...