I don't know if this is an analogy, but the first thing that came to mind was: When did jazz improvisation get so hard? The answer is the Bebop era. And it coul

I don't know if this is an analogy, but the first thing that came to mind was: When did jazz improvisation get so hard? The answer is the Bebop era. And it could just come down to, players got sick of playing the easy stuff, so they started making up hard stuff.