His work is challenging, exhilarating and powerful to watch and to perform. More than just the intricate scores and difficult vocals, Stephen Sondheim musicals are unique in their subject matter. From exploring the issues of contemporary life, marriage and relationships in “Company,” to injustice, murder and revenge in “Sweeney Todd,” he's spent his career offering Broadway audiences works of remarkable craft that challenged and tested the form of the American musical. In this episode of The Next Best Thing, we delve into some of his most celebrated shows, and how they came to be.