<Table> <Tr> <Td> "Butcher's Tale (Western Front 1914)" (1968) </Td> <Td> "Time of the Season" (1968) </Td> <Td> "Imagine the Swan" (1969) </Td> </Tr> </Table> <Tr> <Td> "Butcher's Tale (Western Front 1914)" (1968) </Td> <Td> "Time of the Season" (1968) </Td> <Td> "Imagine the Swan" (1969) </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> "Butcher's Tale (Western Front 1914)" (1968) </Td> <Td> "Time of the Season" (1968) </Td> <Td> "Imagine the Swan" (1969) </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> "Butcher's Tale (Western Front 1914)" (1968) </Td> <Td> "Time of the Season" (1968) </Td> <Td> "Imagine the Swan" (1969) </Td> </Tr> </Table>

Who sings it's the time of the season