<Tr> <Th_colspan="2"> Classic female blues </Th> </Tr> <Tr> <Th> Stylistic origins </Th> <Td> <Ul> <Li> African American folk music </Li> <Li> work songs </Li> <Li> spirituals </Li> </Ul> </Td> </Tr> <Ul> <Li> African American folk music </Li> <Li> work songs </Li> <Li> spirituals </Li> </Ul> <Li> African American folk music </Li>

Which of the following is not a characteristic of classic vaudeville blues