Possessing one of soul music's smoothest, most sensitive voices, Chicago native Lou Rawls spent half a century surveying matters of the heart. But if his subject matter remained consistent, the backdrop changed some with the times: Early hits like “Dead End Street” and “Love Is a Hurtin' Thing” wrap gritty yearning in classic '60s balladry, while 1976's “You'll Never Find Another Love Like Mine” transplants his romantic concerns to sumptuous Philly soul, with bubbly twinges of disco to boot. Rawls' voice rang especially true when preaching positivity (“Groovy People”) and devotion (the smouldering valentine “Lady Love”).