The Loyola Opera Theatre will perform Debussy's “L’enfant prodigue” and Ravel’s “L’enfant et les sortilèges” – both about children and the lessons they must learn – in its annual, fully-staged opera production. The operas are double-cast, meaning a different set of students take to the stage at each of the two performances, she said. The 95-minute production features 28 students who participate in the Opera Workshop.