I have a distant memory of a scene from The Buddy Holly Story in which (as I recall) his father is berating Buddy for wasting his time playing “that… that… that Jungle music.” I probably remember the line because of my realization that “Jungle” was a euphemism for a word we still don’t use, but the message to the audience was clear: Dad was out of touch with a music genre that would soon revolutionize popular art and define a generation.