ROD STEWART Time [Capitol] After a decade of lucrative, critically unloved covers records—five Great American Songbook sets, plus collections of rock and soul chestnuts—Rod Stewart has finally gone back to writing songs. The impetus, he’s said, was his 2012 autobiography, which got him thinking back, taking stock, and basically doing what rock stars do when they research a certain age. With Time, the 68-year-old superstar sings his life in 12...