Paul went all out on "Ram," showcasing his immense songwriting, vocal, and instrumentalist gifts.  He exhibits his skill at singing raspy screamers in "Monkberry Moon Delight" but can turn on a dime and sing so sweetly in "Heart of the Country."  He has so many colorations that his singing can bring a song to the next level.  Think of the amazing fade-out in "Hey Jude," and you'll know what I mean.  He truly was one of our greatest pop singers. (His voice seemed to show some of the ravages of time by the mid-'80s, but he still is a fantastic singer.)  Paul also shows his mastery of harmony in many of the songs in "Ram," with the layered vocals of "Dear Boy" being just one example.