Burt Bacharach. The Pogues. Chet Baker. The Roots. Alison Krauss. The Brodsky String Quartet. Paul McCartney.  It's a far-flung litany of musical luminaries, and many of them make appearances in the new autobiography from Elvis Costello, Unfaithful Music & Disappearing Ink.  The book begins with a young Declan MacManus sitting in the balcony of London's famous Hammersmith Palais, watching his father rehearse with a big band. The musical and geographic horizons bolt outward from there, as Declan dons his boxy spectacles and, over the course of 600 pages and five decades, goes from angry young man to sophisticated orchestral composer, from punk rock ne'er-do-well to elder statesman, from amateur provocateur to the annals of the Roc