The five-disc Smile Sessions works better than any of Brian Wilson's stabs at finishing this lost masterpiece (particularly the 2004 version). This mainly has to do with how experimental pop unfolded over the past five decades. Though unintentional, the music's skeletal nature turned out to be wildly prescient in how it predated the psychedelic deconstruction central to modern lo-fi, electronic pop and ambient-based rock. It's a crazy thought, but had Wilson actually completed Smile in '67, it might have aged about as well as its counterpart Sgt. Pepper, which sounds awfully dated nowadays.