Task: Text Categorization
Input (English): Vincent Persichetti's Parables XIV and XXV were written for this instrument, which has a secondary solo role in Shostakovich's First Piano Concerto.Three of them are employed at the opening of Ashkenazys orchestration of Pictures at an Exhibition, as opposed to the one usually used. Joseph Hummel wrote a concerto for this instrument for Anton Weidinger, for whom another pioneering work for this instrument was written to utilize a "keyed" version to access low-register chromatic notes not on the overtone scale. It is featured in a notable Concerto in E-flat by Joseph Haydn. The titular five-note query in Charles Ives' The Unanswered Question is played by this instrument. For 10 points, name this valved brass instrument, whose jazz virtuosi include Louis Armstrong.
Output (English): Fine Arts