Composer Kris Bowers calls the score to Ava DuVernay‘s “Origin” “one of the most meaningful” of his career, but there’s one music cue, “Leaves,” which he says “stands out as one of my favorite pieces I’ve ever composed.” Inspired by Pulitzer Prize-winning author Isabel Wilkerson’s “Caste: The Origins of Our Discontent, “Origin” follows Wilkerson’s journey in writing the book. Aunjanue Ellis-Taylor plays Isabel as the film explores how caste systems have shaped societies. “Leaves,” a soaring six-minute piece features the musician on piano. It is first heard when Isabel discovers her husband has passed away. The music captures the emotional...