Yes and related

I can already hear Greg mocking prog-rock.

Yes
Yessongs
Classic Yes
Yesterdays
Fragile
9021Live - The Solos
Big Generator
Union
Drama
Close to the Edge
90125
Relayer
Tales from Topographic Oceans

I also have Trevor Rabin's Close to the Edge and the short-lived breakup album by the law firm of Anderson, Bruford, Wakeman, Howe. I also have Symphonic Music of Yes by the London Philharmonic.