Jazz isn't a relic of the mid-20th century, and in fact it has been adapting brilliantly to the contemporary music scene. Bringing the story up to date, Nate Chinen highlights a host of significant changes—ideological, technological, theoretical, and practical—that jazz musicians have learned to navigate since the turn of the century. Unpacking the synergies between jazz and hip-hop and R&B, Chinen pays tribute to vital veterans like Wayne Shorter and Henry Threadgill, and profiles influential newcomers like saxophonists Steve Coleman and Kamasi Washington, pianists Jason Moran and Vijay Iyer, and bassist/singer Esperanza Spalding.