thank you
@threespires , another enjoyable write up.
For me, 'pop' has always confused me as to whether it is a genre, the origins of which you nicely summarise, or a state of mind/audience/movement. I think Pop continues to confuse people to this day, the word reviles some as they instantly think of bubblegum offerings from Britney Spears or some such, but then is countered by the fact that many consider the Beach Boys to be classic Pop. (but arent they surf-rock?!)
I imagine music as a series of interconnected nodes, with weak & strong linkages between ever splintering genres, but the cross-genre-cum-philosophy of Pop will always act as a strange unknown force acting of its own free will, a dark matter of the music industry.