music review Wide-ranging explorations and rock explosions from Robert Plant

As he approaches 70, Robert Plant has been making music on his own for much longer than the tenure of the band that turned him into a rock star. And while there were plenty of fans in the audience Friday night for whom, one suspects, his Led Zeppelin days are what matters most, the music that Plant has made since has unapologetically ranged far from what he did with that iconic group.