Daily, Sept. 17–21
S.F. Botanical Garden
This unique interactive music festival in nature is a Bay Area tradition, where the garden is transformed into an alfresco concert hall. The public is invited to play at the pianos placed throughout the garden in between scheduled performances. Visit website for details and schedule. Tickets required. Free (S.F. residents)–$21, 415-661-1316, sfbotanicalgarden.org