That's all true, kind of what I said when I qualified my dismissal of SAM: I said the album itself did not seem to me to be anywhere near prog but that the Captain had undeniably an influence on the artists who would be. But compared to the likes of the Moodys, Nice and Floyd, his input on that album would be seen as minimal to me. Kind of like Zappa too. I understand they sort of put the key in the ignition (or maybe, sold the car might be closer) that bands like Yes, Rush, Genesis, Gentle Giant, Camel, Floyd and ELP took out for a screaming joyride down the highway. Without that salesman there would theoretically be no joyride (I do love these colourful metaphors, don't I?) but it's the driver who makes the journey.
Also: remember? F
uck it man: I was
four years old in 1967! I can just about remember "A windmill in old Amsterdam", an underappreciated classic of its time!