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?
100% agree about electric instruments. I would say guitar pickups and amplification ushered in a new generation of innovation in both music creation instrument usage. Several posters here have mentioned innovations like the Wall of Sound, or Hendrix, but those don’t happen without George Beauchamp creating the electric guitar pickup.
George Beauchamp is modern music’s Fosbury