The nonfiction “Mouth Harp in Minor Key,” which explores what it means to be bicultural through an Iranian-American prism, finds metaphorical meanings in the unusual reflections of Chicago’s “Cloud Gate” sculpture. Photo courtesy of Maryam Sepehri.

The nonfiction “Mouth Harp in Minor Key,” which explores what it means to be bicultural through an Iranian-American prism, finds metaphorical meanings in the unusual reflections of Chicago’s “Cloud Gate” sculpture. Photo courtesy of Maryam Sepehri.

The nonfiction “Mouth Harp in Minor Key,” which explores what it means to be bicultural through an Iranian-American prism, finds metaphorical meanings in the unusual reflections of Chicago’s “Cloud Gate” sculpture. Photo courtesy of Maryam Sepehri.