call and response

Short definition from Wiktionary

Noun

1. 1
   An interaction between speaker and listener, in which statements of the speaker are rapidly followed by responses from the listener.
2. 2
   A musical technique in which one or more performers calls and others, often the audience, respond with alternating musical phrases.
3. 3
   A prayer or preaching verbal technique similar to this.
4. 4
   Alternative form of call and response.