I have been waiting for this one. Without a doubt, Sgt. Pepper's is one of the most (if not THE most) innovative and influential albums of all time. Everything from the songwriting, sound, production, and even the artwork, was like nothing else I had seen at the time - even from the Beatles themselves. The Beatles had a voracious appetite to learn. You can tell that by listening to the boundless variety in the songs on this album. The musical metamorphosis of the Beatles from "Please Please Me" (1963) to Sgt. Pepper's (1967) was unparalleled. Finally, the band had the innate ability to absorb their daily experiences and beliefs and translate them into the most creative music and lyrics. Just amazing, or maybe just A Day in the Life.