This thread is a compendium of niche and obscure facts about the fab world of pop music that are not widely known. It may get you out of trouble in a pub quiz one day.
My staggering fact is that the only Pink Floyd album that only has members of Pink Floyd playing on it is Animals. There are either uncredited or credited guests. Meddle almost qualified, but Seamus the Dog is on it.
(I fully expect lots of ‘Thelonius Monk lived in a 13-dimensional house’, ‘Vardis invented Yarg cheese’, and all the usual ones)