Given the question: Extract the answer to the question from the following context. Question: William Tell Overture is a piece of? Context: Similarly, movies and television often revert to standard, cliched snatches of classical music to convey refinement or opulence: some of the most-often heard pieces in this category include Bach's Cello Suite No. 1, Mozart's Eine kleine Nachtmusik, Vivaldi's Four Seasons, Mussorgsky's Night on Bald Mountain (as orchestrated by Rimsky-Korsakov), and Rossini's William Tell Overture.
The answer is:
music