"Dear Boy" is kind of straightforward as a song. Then it is, again, that dreamy wall of sound (using backing vocals mainly to create the wall) that make it special. Paul was experimenting. Many of his solo albums have this experimental... almost unfinished feel to them. While I love the stereo separation of the main vocals from the backing vocals in the song... it is a nostalgic thing for me... I think later in the song the wall of sound effect has a better feel to it. It is nice to begin a song with simple elements then move to complex... but.... those elements have a heavy load to bear when highlighted alone.
Then... well, what do you make of this? Tied together by sound... "Uncle Albert/Admiral Halsey / Smile Away". "Smile Away".... let's call that a ballad. :) "Uncle Albert/Admiral Halsey" was a moment for me as it put together this sound (which was far different than I had been used to) into a very polished composition with orchestration and everything it needed to succeed. In fact, I would guess that this song helped more than any other to help me accept the vast changes Paul's sound seemed to be going through. Since then, I have heard enough outtakes to realize that not much had really changed at all with the exception of adding Linda's vocals, a little creativity, a carefree manner, and that country twang. :)