I don’t see how you can lump 60s music together. It started with Do Wop, then Surf music, the British Invasion, Stax/Volt and Atlantic Soul, Motown Soul, the San Francisco sound, acid rock, Dylan, blues rock, horn bands such as Blood, Sweat, and Tears, Chicago, Ten Wheel Drive, Mike Oldfield, the mixing in of country from Graham Parsons, music from musicals such as Hair and Jesus Christ, Superstar, and ended with the beginnings of AOR and Southern Rock from the Allman Brothers.