I recently acquired the 2 CD Anniversary Edition of Sgt. Pepper, which I first listened to last night. I noticed a couple small things, and I plan to write a few posts about them over the course of the next few days.
In "Within You Without You," the "away" in the line "When they pass away" is sung with a melisma (going back and forth between Gb and F). This provides a musical sense of movement, namely that "pass[ing] away."