Fidelio’s unusual structure, glorious score, and life-affirming aura make it a unique experience. It has been called a hymn to freedom and human dignity. Formally a singspiel (with musical numbers separated by spoken dialogue), Fidelio had a long and complex gestation. Its uplifting spirit made it the obvious choice for several important productions marking the end of World War II, including the reopening of the Vienna State Opera in 1955.