LEONARD COHEN Old Ideas [Columbia]  It’s a funny thing to say about a septuagenarian, but Leonard Cohen has really grown into his voice. What was always a distinctive instrument has deepened on his new album into a resonant purr capable of insinuating itself into the deepest part of you. Old Ideas is only the 12th studio album in a musical career stretching back to 1967, but Cohen chooses his words with considerable care. He’s become more...