Soft Machine-
Third (1970)
As far as I am concerned this is like a tonic, I need to hear it every so often to stay healthy and sane(ish). Robert Wyatt will always be my favourite prog 'character'.
The Chrysanthemums -
Little Flecks Of Foam Around Barking (1988)
For those who don't know Barking is in East London, where this was recorded by Yukio Yung (aka Terry Burrows, successful author of instructional guitar manuals including Dorling Kindersley's 'K.I.S.S. Guide to Playing Guitar' which I used to have) and Alan Jenkins of new wave/post-punk greats Deep Freeze Mice.
It's a sprawling, knowingly self indulgent, homegrown concept double LP of psychedelic prog-pop and just about everything in between, with tape manipulations added by mail correspondence from unsung genius R. Stevie Moore.