Many classic albums are surrounded in juicy, front-page-of-the-Daily Mail drama. Then there's Paul McCartney's debut solo album, McCartney -- released 50 years ago on April 17, 1970 -- which is in a league of its own. To some, it's The Album That Ended The Beatles. But, as is so often characteristic of rock lore, much of that drama overshadows the musical artifact and its true lasting legacy.