June 13 (UPI) -- In the fall of 1971, Sly and the Family Stone's " There's a Riot Goin' On " landed like a quiet revolution. After two years of silence following the band's mainstream success, fans expected more feel-good funk from the ensemble. What they got instead was something murkier and more fractured, yet deeply intimate and experimental. This was not just an album; it was the sound of a restless mind rebuilding music from the inside out. At the center of it all was front man Sly Stone .