The San Francisco Symphony, founded in 1911, is an American orchestra based in San Francisco, California. Since 1980 the orchestra has been resident at the Louise M. Davies Symphony Hall in the city's Hayes Valley neighborhood. The San Francisco Symphony Youth Orchestra and the San Francisco Symphony Chorus (1972) are part of the organization. Michael Tilson Thomas became the orchestra's music director in 1995, and concluded his tenure in 2020 when Esa-Pekka Salonen took over the position.