Original sentence: Mathis der Maler is staged occasionally, notably by the New York City Opera in 1995, but the Mathis der Maler symphony that Hindemith extracted from the opera has been far more popular.The opera is a complex work, and much respected by many musicians, despite the general lack of an audience for twentieth century opera
Edited sentence: It is a complex work, and much respected by many musicians, despite its lack of widespread popularity.Mathis der Maler is not often staged, despite the popularity of the Mathis der Maler symphony that Hindemith extracted from the opera