You will be given a definition of a task first, then some input of the task.
In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Several of his early works, including such operas as Cleonice, Demofoonte, and Artaserse, were written with librettist Pietro Metastasio. He had begun composing an opera based on the Song of Roland, but the discovery that Niccolo Piccini was given the same libretto to work on sparked a rivalry in the Parisian press and motivated him to compose Armide. Collaboration with the librettist Calzabigi resulted in the composition of the ballets Semiramide and Don Juan, as well as an opera featuring the "Dance of the Blessed Spirits" and another in whose preface he declared his intent to "restrict music to its true office of serving poetry. " FTP, identify this German classical composer of "reform" operas such as Alceste and Orfeo et Euridice.
Output:
Fine Arts