At the Lincoln Memorial on August 28, 1963, Mahalia Jackson’s shout to her close friend Rev. Dr. Martin Luther King Jr. changed his speech: “Tell them about the Dream! Tell them about the Dream!” It’s said that her plea inspired Dr. King to stray off-script in his immortal speech. That passage, captured in notes made by King speechwriter and Stanford Scholar in Residence Dr. Clarence B. Jones, is central to composer Zachary James Watson’s Peace Be Till. See it performed by the groundbreaking Kronos Quartet in a concert that includes music from a decade that changed the nation.