listening this morning to The Yes Album, Fragile and Close to the Edge. Fantastic legendary run for Yes. Off top of my head I can think of Beatles Rubber Soul, Revolver and Sgt Peppers as similarly fantastic. Also King Crimson Larks Tongues, Starless and Bible Black and Red. Also Rolling Stones Beggars Banquet, Let it Bleed and Sticky Fingers. Black Sabbath self titled, Paranoid and Masters of Reality. David Bowie Man Who Sold the World, Hunky Dory and Ziggy Stardust. Led Zep IV, Houses of the Holy and Physical Graffiti. What else am I missing?