When writer Stacy Horn was 26 years old, she was divorced and miserable. So she decided to audition for the Choral Society of Grace Church in New York. Horn made the cut and joined the community choir as a soprano.
She chronicles her 30 years with the group in a new memoir, Imperfect Harmony: Finding Happiness in Singing With Others. She talks with NPR's Ari Shapiro about how singing made her life more bearable.
Daniel Levitin, psychology professor at McGill University, and author of This Is Your Brain on Music, joins the conversation to explain the science of group singing.