Back in 1975, prog-rock virtuoso Rick Wakeman, at the time also an ‘on-off’ keyboardist with the group Yes, released the third of his solo albums. Like the previous two albums (The Six Wives of King Henry VIII (1973) and Journey to the Centre of the Earth (1974)) it was not short of ambition, planning to tell, in musical form and mood, the story of King Arthur, Queen Guinevere and the Knights of the Round Table…