More than a half-century has passed since Taj Mahal and Ry Cooder recorded together. The occasion was Mahal’s 1968 debut album, which featured Cooder—credited as Ryland P Cooder—on guitar. Three years earlier, they were bandmates in the Rising Sons, a short-lived group that made one unreleased album for Columbia Records. Mahal and Cooder remained friends and collaborated in the decades since their band broke up. But they didn’t record together until 2021, when their mutual love for the music of blues masters Sonny Terry and Brownie McGhee reunited them. On Get on Board: The Songs of Sonny Terry & Brownie McGhee, Mahal and Cooder perform 11 songs they adapted from records and live performances of Terry, a harmonica player and singer, and McGhee, a guitarist and singer