Rock and Roll Explorer Guide to San Francisco and the Bay AreaSan Francisco's rich and unique cultural history since its time as a gold rush frontier town has long made it a bastion of forward thinking and freedom of expression. It makes perfect sense, then, that both it and the surrounding Bay Area should prove to be a crucible for some of the most enduring and influential music of the rock and roll era. From the heady days of Haight Ashbury in the '60s to today, San Francisco and the Bay Area have provided a