Roger Waters has been Pink Floyd's most prolific individual artist, though you might not know it. After all, he spent much of the time after releasing 'Amused to Death' touring solo versions of his old band's 'Dark Side of the Moon' and 'The Wall.' But he's actually issued more albums than any of his former bandmates since leaving Pink Floyd -- and could bolster that total if you added 1983's 'The Final Cut,' which was essentially his work as interpreted by the band. His solo career hasn't disappointed, even with surprising experiments along the way like the sequencers on "Radio K.A.O.S." and opera on 2005's 'Ca Ira.' All along, the essential elements of Waters' best work in Pink Floyd have remained -- his way with a narrative, his cutting wit, his sharp commentary. And when he's collaborated (as with Pink Floyd) alongside a distinctive guitarist, be that Eric Clapton in the 'Pros and Cons of Hitch Hiking' era or Jeff Beck on 'Amused to Death,' Waters has proven himself time and again equal to the legacy of what came before.