With her third record, Miranda Lambert remains country's most refreshing act, and not just because she makes firearms seem like a matter-of-fact female accessory. The playlist is her most varied yet: "Airstream Song" is a string-band dropout fantasy that includes a nod to fellow "red-dirt girl" Emmylou Harris, while a redneck-surrealist cover of John Prine's "That's the Way That the World Go...