<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (August 2016) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> San Francisco Sound </Th> </Tr> <Tr> <Td_colspan="2"> San Francisco pictured in 2009 . </Td> </Tr> <Tr> <Th> Stylistic origins </Th> <Td> <Ul> <Li> Rock </Li> </Ul> </Td> </Tr> <Tr> <Th> Cultural origins </Th> <Td> Mid 1960s, San Francisco, California, U.S. </Td> </Tr> <Tr> <Th_colspan="2"> Other topics </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Acid rock </Li> <Li> California Sound </Li> <Li> Haight - Ashbury </Li> <Li> Psychedelic rock </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> San Francisco Sound </Th> </Tr> <Tr> <Td_colspan="2"> San Francisco pictured in 2009 . </Td> </Tr>

Why was jefferson airplane an important band in the development of the san francisco sound