Here, a Chick Corea quintet is at Montreux, playing his “Spain.”
At approx 10:30 from the top of this YouTube file, before the out chorus/finale, Chick feeds the audience an improvisation, one measure at a time, and the audience sings each measure back to him.
Because the phrases are short, it’s easy to transcribe them, and to transcribe the call-and-response is to learn it.
Whether you’re a singer, pianist, or playing something else, I hope you will agree! Let me know. BTW, if you click on the image of the transcription, it gets bigger, more readable.