<Ul> <Li> Economics </Li> <Li> Music </Li> <Li> Physics </Li> </Ul> <Tr> <Th> 20th - century neoclassicism </Th> </Tr> <Tr> <Td> <Ul> <Li> Between World War I and II </Li> </Ul> <Ul> <Li> Ballet </Li> <Li> Economics </Li> <Li> Music </Li> </Ul> <Ul> <Li> Philosophy </Li> </Ul> </Td> </Tr> <Ul> <Li> Between World War I and II </Li> </Ul>

Who was considered the pioneer of austere style neoclassicism