Before revision: Performances were communal with the storytellers and audience interacting and participating in call and response, which is characterized by a vocalist signing a phrase that is then echoed or responded to with a new phrase by the other performers and/or audience.
After revision: Performances were communal with the storytellers and audience interacting and participating in call and response, which is characterized by a vocalist singing a phrase that is then echoed or responded to with a new phrase by the other performers and/or audience.