Bound by brotherhood and sense of purpose, these men hand-crafted a conscience-scalding musical melting pot, churning out worldwide `70s million-sellers such as The World is a Ghetto, Slippin' into Darkness, The Cisco Kid, Low Rider and the anthem Why can not We Be Friends.Their albums were jazz-soaked travelogue soundtracks that reacquainted listeners with the four cornered rooms of their