Whether or not he knows it, [Browne's] been writing about highways and their alternate routes since his beginnings, so the subject matter and thematic concerns of Running on Empty aren't all that different from those of his first four LPs. But the approach is. This time, Browne has consciously created a documentary, as brightly prosaic as it is darkly poetic, with a keen eye for the mundane as well as the magical. Running on Empty is a live album of new material about life on the road as conceived and recorded by a band of touring musicians in the places they spend most of their time (onstage, backstage, in hotel rooms, even on the bus). Since there are two separate concepts here, the audience gets an unprecedented double feature: ten songs they've never heard Browne sing, and a behind-the-scenes look at "the show they didn't see." Ostensibly, the...