Her playing has expanded to include electric explorations on a Gibson ES-175 and a Fender Stratocaster, in close coordination with a five-member band, while her voice has noticeably matured.

At age 66, Bonnie Raitt’s still got the blues. And that’s definitely a good thing. The “Road Tested” country rocker is still firing on all cylinders, with a new studio album — her 20th ...