<Table> <Tr> <Th> Periods and eras of Western classical music </Th> </Tr> <Tr> <Th> Early </Th> </Tr> <Tr> <Td> <Table> <Tr> <Td> Medieval </Td> <Td> c. 500--1400 </Td> </Tr> <Tr> <Td> Renaissance </Td> <Td> c. 1400--1600 </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Common practice </Th> </Tr> <Tr> <Td> <Table> <Tr> <Td> Baroque </Td> <Td> c. 1600--1750 </Td> </Tr> <Tr> <Td> Classical </Td> <Td> c. 1730--1820 </Td> </Tr> <Tr> <Td> Romantic </Td> <Td> c. 1780--1910 </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Modern and contemporary </Th> </Tr> <Tr> <Td> <Table> <Tr> <Td> Impressionist </Td> <Td> c. 1875--1925 </Td> </Tr> <Tr> <Td> Expressionist </Td> <Td> c. 1875--1950 </Td> </Tr> <Tr> <Td> <Ul> <Li> Modern </Li> </Ul> </Td> <Td> c. 1890--1975 </Td> </Tr> <Tr> <Td> 20th century </Td> <Td> (1900--2000) </Td> </Tr> <Tr> <Td> <Ul> <Li> Contemporary </Li> <Li> Postmodern </Li> </Ul> </Td> <Td> c. 1975--present </Td> </Tr> <Tr> <Td> 21st century </Td> <Td> (2000--present) </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th> Periods and eras of Western classical music </Th> </Tr>

How did the symphony change throughout the classical era