Great reading,
As I do like most of the mentionned music and due to my age I did not miss the late 60ties.
Allthough quite some memorable groups are mentionned I still miss IMO an important group called TANGERINE DREAM and sure i know there are a lot more where also some more commercial ones were important, like Alan Parsons project, Vangelis etc...and if I even recall I think the Mellotron earlier mentionned from the Beatles was bought by Tangerin Dream or anyway ended there...
Fred