Meg Wolitzer presents a show about the theater, and those who love it. Rachel Klein’s “Audience Instructions for Our Immersive/Experimental Theatre Production In An Abandoned Middle School In Bushwick,” read by Santino Fontana, sends up the avant-garde. In “Our Mutual (Theater) Friend,” by Amber Sparks, A retired diva just can’t fit into ordinary life—and then, she’s given an extraordinary gift. Krystina Alabado reads. Ann Petry’s “Solo on the Drums,” read by Peter Francis James, captures a passionate performance. And Anton Chekhov offers up a theatrical power couple and their puzzling marriage in “He and She,” read by present-day theatrical power couple Hugh Dancy and Claire Danes.