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?
Not just one imho: if we go that back in time I’d start with electric instruments, more recently (~50 yrs ago) multitrack, then electronic music (whether you have it started with synth in the 80s or with music entirely made on a computer in the early 00s). All 3 changed the game and were adopted by everyone
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