Harry Nilsson's relatively short life was messy, complicated and not easily explained in a sentence or two. Likewise, his music was just as scattered, unfocused and undefinable.
It makes boxing up his career a tough and possibly futile task. Which is why, even at 17 discs, 'The RCA Albums Collection' can't really pinpoint the restless artist. Nothing can, really. But this massive set makes a valiant effort.