On his third album, released 50 years ago today, Jackson Browne returned to the themes of his debut record (love, loss, identity, apocalypse) and, amazingly, delved even deeper into them. If Browne had seemed to question everything in his first records, here he even questioned himself. It was a lot to put into a pop music album, but Browne stretched the limits of what could be found in what he called "the beauty in songs," just as Bob Dylan had a decade before. - William Ruhlmann