Cesar Alvarez and Sarah Benson discuss their new musical, "Futurity." Alvarez wrote the lyrics and book, and co-wrote the music with his band, The Lisps, while Benson, the artistic director of the Soho Rep, directed. The play revolves around Julian, a Civil War soldier dreaming of a technological utopia, and Ada, a mathematical genius thousands of miles away. Together, they're going to invent a machine to end one of the darkest periods in our history.  

"Futurity" will be at the Connelly Theater, 220 E. Fourth St., New York, NY 10009, through November 22.