Such bands as Creedence Clearwater, Steve Miller band, Jefferson's Plane and The Grateful Dead were all part of the San Francisco sound.
It is an expression used as a reference to the style of rock music that was played live in the city of San Francisco in the 60's and 70's. This term was used as a way of identifying bands that were related to the American counterculture movement that was concentrated in the city.
Therefore, the city of San Francisco was the focus of the youth counterculture of the time, bringing together young people who protested and identified with rock and roll.
Find out more about counterculture here:
https://brainly.com/question/2142216
