Wally - Valley Gardens (Almost unheard of English band produced a prog rock masterpiece with strong West Coast influences)
Edgar Broughton Band - self titled (contains Evening Over Rooftops which should be recognized as a prog classic)
Al Stewart - Past Present & Future (Not normally a prog artist but this is a prog album)
Colosseum - Those about to die salute you US version (the US release of this album has never been released on CD but contains the original, and superior version of the Valentyne Suite)
Quintessence - Self (hugely popular at the time but hardly heard of now)
String Driven Thing - The Machine That Cried
Keith Christmas - Pigmy (side two is pure prog, side one is a series of beautiful ballads)
Stackridge - Man in the Bowler Hat
Brinsley Schwarz - self titled (this band fell foul of the critics but their only real prog song - ballad of a has been beauty queen - is the track that defines the expression: "organ drenched")
Blodwyn Pig - Getting to This (great band, sadly overlooked)