And here's the answers......I got 16.
The ones I didn't know are in italics!
A1 Frank Zappa -Hot Rats
A2 King Crimson - In the Court of the Crimson King
A3 Gentle Giant - Gentle Giant
A4 The Nice - Five Bridges
A5 Caravan -In the land of Grey and Pink
A6 ELP - Tarkus
B1 Jethro Tull - Aqualung
B2 Moody Blues - Every good by deserves favour
B3 Van Der Graf Generator - Pawn Hearts
B4 Yes - Fragile
B5 Wishbone ash - Argus
B6 Genesis - Selling England by the Pound
C1 Greenslade - Greenslade
C2 Mike Oldfield - Tubular Bells
C3 Pink Floyd - Dark Side of the Moon
C4 Hawkwind - Warrior on the Edge of Time
C5 Rick Wakeman - Myths and Legends of King Arthur
C6 Rush - Fly by Night
D1 Tangerine dream - Rubycon
D2 Barclay James Harvest - Octoberon
D3 Camel - Moonmadness
D4 Kansas - The Point of know return
D5 Alan Parsons Project - Eye in the Sky
D6 Marillion - Script for a Jesters Tear
Best of the bunch? King Crimson - In the Court of the Crimson King.....no question!