“White Raven, Black Dove,” a new opera animated by its performers, and a computer, debuts at Strand

Performers, producers and creatives rehearse for White Snake Projects’ “White Raven Black Dove,” showing from Sept. 26 to Sept. 28 at the Strand Theatre. Laine Rettmer, the director, and Renee Yancey, the stage manager, watch the performers in a scene at rehearsal. Photo by Angelica Vivas

Opens this weekend; 'pay what you can' tickets

Inside a sprawling Brookline home, where koi swim in an in-ground living room pond and a pet pig named Mazipan can be seen through sliding glass doors, a troupe of performers flit around a makeshift stage, rehearsing a battle of futuristic proportions.

The scene is set in the years after the Sixth Extinction — a human-made climate crisis that has left the planet Earth a dystopian wasteland —and a new opera, “White Raven, Black Dove,” which is scheduled for