Answer the following question: Information: - Frederic Chopin composed his Scherzo No. 4 in E major , Op. 54 , the fourth and the last of his scherzos in 1842 . The scherzo was published in 1843 . Unlike the preceding three scherzi ( Op. 20 , Op. 31 , Op. 39 ) , the E-major is generally calmer in temperament , though it still possesses some exceptionally passionate and dramatic moments . The scherzo is in sonata rondo form , moving to a trio in C - sharp minor that is based on a Polish folk song . As such , it is the only one of Chopin 's four scherzos primarily based on a major key . This scherzo is the longest out of the four , both in time ( around 8 - 10 minutes ) and measures ( over 960 measures / bars ) . - A symphony is an extended musical composition in Western classical music, most often written by composers for orchestra. Although the term has had many meanings from its origins in the ancient Greek era, by the late 18th century the word had taken on the meaning common today: a work usually consisting of multiple distinct sections or movements, often four, with the first movement in sonata form. Symphonies are scored for string (violin, viola, cello and double bass), brass, woodwind, and percussion instruments which altogether number about 30100 musicians. Symphonies are notated in a musical score, which contains all the instrument parts. Orchestral musicians play from parts which contain just the notated music for their instrument. A small number of symphonies also contain vocal parts (e.g., Beethoven's Ninth Symphony). - Frederic Francois Chopin (1 March 181017 October 1849), born Fryderyk Franciszek Chopin, was a Polish composer and virtuoso pianist of the Romantic era who wrote primarily for the solo piano. He gained and has maintained renown worldwide as a leading musician of his era, whose "poetic genius was based on a professional technique that was without equal in his generation." Chopin was born in what was then the Duchy of Warsaw and grew up in Warsaw, which in 1815 became part of Congress Poland. A child prodigy, he completed his musical education and composed his earlier works in Warsaw before leaving Poland at the age of 20, less than a month before the outbreak of the November 1830 Uprising. - A string quartet is a musical ensemble of four string players two violin players, a viola player and a cellist or a piece written to be performed by such a group. The string quartet is one of the most prominent chamber ensembles in classical music, with most major composers, from the mid to late 18th century onwards, writing string quartets. - A scherzo (plural scherzos or scherzi), in western classical music, is a piece, sometimes a movement from a larger work such as a symphony or a sonata, usually written in time. The precise definition has varied over the years, but scherzo often refers to a movement that replaces the minuet as the third movement in a four-movement work, such as a symphony, sonata, or string quartet. The term can also refer to a fast-moving humorous composition that may or may not be part of a larger work. Given the paragraphs above, decide what entity has the relation 'instrumentation' with 'piano'.
Answer:
scherzo no. 4