Bobby Caldwell and Jack Splash are Cool Uncle, a collaboration that, given the artists' previous output, has resulted in an unsurprisingly dapper brand of R&B. Caldwell is known most for "What You Won't Do for Love," a 1979 Top Ten pop hit that became a kind of standard, covered dozens of times over. His discography of well over a dozen albums, which includes the oft-sampled and reinterpreted likes of "Open Your Eyes" and "My Flame," goes much deeper than that single. Producer Splash's work with Jennifer Hudson, Jazmine Sullivan, Melanie Fiona, and Cee Lo Green has led to Gram...