The Tulsa massacre of 1921 was a coördinated assault on and destruction of the thriving Black community known as Greenwood, Black Wall Street, or Little Africa. Even today, the death toll remains unknown. In fact, for generations, most people—including many Tulsans—did not know about the massacre at all. This year marks its hundredth anniversary, and it is being commemorated with documentaries, official events in Tulsa, and one very unusual rap album: “Fire in Little Africa,” which comes out in May on Motown Records. It features about forty rappers, and thirty other singers, musicians, and producers who tell the story of Greenwood at its height—and of their dreams of a revitalized Black Tulsa. The freelance producer Taylor Hosking explains the creation of the album to The New Yorker’s Vinson Cunningham.