Jazz.....if you try to improvise without regard to theme, beat and chord, you wind up with garbage. Just like much of what the hippies had.
Quite right. And when you consider the quality of the enduring jazz 1948-1960 that parallels the beatniks, you find jazz in many ways (in my opinion) at its peak, most notably represented by Miles’ Birth of the Cool sessions, and the Miles Ahead collaboration with Gil Evans. These arrangements were crafted like jewels, certainly not the work of scatterbrained freedom seekers.