<Tr> <Th> Typical instruments </Th> <Td> <Ul> <Li> Vocals </Li> <Li> vocal percussion </Li> <Li> beatboxing </Li> <Li> body percussion </Li> <Li> live looping </Li> <Li> instrument mimicry </Li> </Ul> </Td> </Tr> <Ul> <Li> Vocals </Li> <Li> vocal percussion </Li> <Li> beatboxing </Li> <Li> body percussion </Li> <Li> live looping </Li> <Li> instrument mimicry </Li> </Ul> <Tr> <Th_colspan="2"> Subgenres </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Barbershop music </Li> <Li> collegiate a cappella </Li> <Li> puirt à beul </Li> </Ul> </Td> </Tr>

Which of the following is not true about the a cappella style