The second Gathering of Tribes music festival is under way in honor San Francisco 1967 where the first Human Be-In first took place at Golden Gate Park, and where the summer of love sprung from the Haight-Ashbury District to the first Monterey International Pop Music Festival. The tribe is gathering once again to celebrate music, art and love for one day featuring visual artists, vendors, DJs, food and more than 20-bands will perform on two-stages. October 22, 12:00 PM -1:00 AM at Public Works SF, 161 Erie St, San Francisco, CA 94103. Gathering of Tribes is an annual music and art festival, which is supported by the local music community…