Hi,
(An attempt at a definition!!!!! hahaha!!!!!)
Thanks for getting me started on that Bit ... here goes.
For me, the best term for the time and place, is NOT "progressive', but "psychedelic", of which, the likes of the Beatles and Rolling Stones, and most of the California bands, would, THEN, have some serious representation. However, I think the London contingent would have an issue with "losing" their "mastery" over the definition of their "music", which as stated and defined, will not include a lot of American and European bands at all!
Later it did, but not in the early days, despite the fact that Europe has a massive artistic/theatrical/film history that happened BEFORE popular and rock music, and it was quite vivid in the 60's all over. But it did not have a "hit song" to represent itself ... and this means that Godard is an idiot, Fellini is a bad clown, that Antonioni forgot to turn off his camera, and David Lean was exercising his narcissistic love for endless images that never died! And we have not even mentioned theater yet!
For me, the term that helps and defines it best ... is "psychedelic". The only problem with it, is that we automatically associate it with DRUGS, and we quickly forget to take a look at Picasso's Guernica, and how psychedelic it really was, and all of a sudden it gave rise to a new art style that became called "cubistic", and it wasn't about cubes ... it was about all the body parts that a kid was seeing outside his window in an ugly Civil War in Spain. Body parts and dead folks in the streets. What is it about that painting that isn't true? It is only "cubistic", because it is easier for us to imagine that we cut up the picture with scissors, so that we do not have to imagine the total HORROR that the person painting that was really seeing.
And 50 years later, we do the same thing with a different kind of music, that became popular, which was another element that hurt. The music and art controls, up until that time had been the movie studios and in the 50's TV started to break it apart some. And in the 60's, the studios and upper class, would no longer control the majority of the arts in these new times and places. Today, as you know, it's wide open!
The term, "psychedelic" for me, is just like reading "The Doors of Perception", and your curiosity, and innocence and even naiveté, lives ... just fine, along with everything else, and you do not even notice that the perspective is different, until later, when you try to recall and formulate a theory of relativity for yourself. If you "can't", you will forever be a slave to the drug, or some kind of religious soothsayer telling everyone else about the evils of drugs ... never mind the person behind it!
The only point, which matters, for me, is that it was done, and the expression has stood the test of time. That in itself, is a solid explanation for its strength and inner design, although I doubt that Jim Morrison would have said that they sat up all night for 7 days to write this story for a song! Or that Grace spent 4 days writing a set of lyrics that defines a whole generation that we're trying to forget ... never mind the fantasy that was before it, in the first place! Like the writer himself did not do the same thing?
The perspective is missing, and this is the part of "progressive" that bothers me. Thus I prefer "psychedelic", knowing that as time goes by, this will get separated from drugs a bit more and the process and design, intentional or not, experimental or not, improvised or not, created an expression that was truly valuable as an artistic process. This "process" is highly valuable in theater/film acting processes, and has been for 50 years ... but for the most part it has been ignored by musicians, that seem to be more infatuated with fame and fortune, than they do their art. I'm not sure they "know" what their "art" really is, beyond a sing, and that could be a slight problem.
For some reason, I do not feel "confused" on this at all. The term would fit well in the designs, although it could easily be said that it started way back when with Stravinsky as well.