JACK BRUCE The legendary bass ace returns with his first solo album in a decade Jack Bruce cemented his legacy when he composed one of rock’s most enduring riffs—the signature bassline of “Sunshine of Your Love.” But his many contributions to the 1960s supergroup Cream—which he formed with Eric Clapton and Ginger Baker—comprise but a fragment of a career that’s veered from jazz to metal to R&B. In the years since Cream broke up,...