The next San Francisco's Sunday Streets is in the Excelsior district (Mission). Are you going?
Sunday Streets is a "a safe, fun, car-free place for people to get out and get active in San Francisco neighborhoods." In addition to the regular fun stuff (dance performances, climbing wall, live music, free bike rentals, yoga, pilates, arts/crafts), there's a Tricycle Music Festival event at the library there.
It's this Sunday, September 28, Avalon to Geneva on Mission, from 11-4. Details and map here.