Fifty years into his career, every new Bob Dylan album is still greeted with a mixture of anticipation and expectation that few can match. What’s he going to say about life? How’s he going to say it? Did he change religions again? Is there anything salvageable in his voice? ‘Duquesne Whistle,’ the first single from his upcoming album, ‘Tempest,’ has been released and, while it doesn’t answer all those questions, it still bears many of the hallmarks of Dylan’s late career resurgence.