You've hijacked my evening - I have now embarked on a trawl through YouTube for my old Soft Machine and Hawkwind albums!
I liked the early Soft Machine with Robert Wyatt, but I also liked some of their later more jazzy stuff. I have just stumbled across something that I haven't heard for nearly 40 years. A mate had a spluttery mono recording of a Soft Machine concert on the BBC in 1971 and there is a pristine copy of it on YT, in stereo. I am listening to it now and remembering being 15.
Oh, and my mate had one of those liquid wheel projectors, which we used to aim at the wall while we listened to this kind of stuff ...
I found Stacia cavorting quite interesting at the time too ...