When athletic height jumping was considered done and perfected, there was the Fosbury flop which opened new possibilities. Do you think there was such a moment in the music history? When someone showed how things can be done and from there everyone is using his/her technique?
You didn’t even mention the biggest technological leap; recording. Being able to capture music and play it at one’s will fundamentally changed virtually everything about music.
Yup. Radio did as well
And then video killed the radio star.
Another thing is cheap, good-sounding speakers and headphones
Can you imagine Billie Eilish releasing Bad Guy in the 80s? 90% of the country wouldn’t hear a thing