@stuartk I share your assessment of “Sgt. Pepper.”
The White Album, an album that contains compositions like, “Martha My Dear,” “Blackbird,” “Happiness is a Warm Gun,” “Julia,” “Dear Prudence,” “Cry Baby Cry,” “While My Guitar Gently Weeps,” “Sexy Sadie,” “I Will,” “Mother Nature’s Son,” and emerged from the same sessions that produced, “Hey Jude” clearly constitute the Beatles at peak-level musical composition.
That grouping of compositions (the compositions stand on their own, free of the showy, ‘look at all the crazy studio stuff we can do!’ adornments of ‘66-‘67, which are amazing in their own right) shows far greater consistency and depth in its plethora of harmonically and structurally sophisticated compositions (but still immediately accessible and immediately satisfying to the laymen - not an easy thing to accomplish) than previous or subsequent LPs.
No other Beatles album had a dozen songs at that level, before or after.
You’re incorrect on the song, “Something,” by the way.
George Harrison played that guitar solo.