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.

Q: One of this man's works contains a "doppio movimento" movement where a solo clarinet introduces five variations on a traditional melody. Other compositions by this man include Grohg and Hear Ye! Hear Ye! as well as a work which begins with the song "The Open Prairie". He created a compositions which features sections titled "Corral Nocturne" and "Buckaroo Holiday", as well as a square dance where the Roper and Cowgirl kiss, the "Hoe-down". Many of his ballets were choreographed by Agnes de Mille. For 10 points, name this American composer who created Billy the Kid, Rodeo and Appalachian Spring.

A: Fine Arts
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Q: This country's early railways include the spiral tunnels of the Gotthard line, and its Glacier Express railroad has a terminus at St. Moritz. This home of the vineyard terraces at Lavaux ("luh-VOE") is home to a castle where Lord Byron's poem "The Prisoner of Chillon" is set. This country hosts the yearly World Economic Forum at Davos. This country includes about eighty thousand speakers of Romansh, its fourth official language. For 10 points, name this landlocked European country home to Lake Lucerne, whose Alps include the north face of the Matterhorn.

A: History
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Q: The desire to introduce it to the path integral expression for the canonical partition function led Cao and Berne to devise a free energy version of it. It can be contrasted with a method that uses the extended Lagrangian approach and is named for Car and Parrinello. An extension of it to transitions between electronic energy levels leads to the Franck-Condon principle. It neglects vibronic coupling, one form of which is the Renner-Teller effect, and it often breaks down in diatomic molecules. Derived by using the Eckart conditions, it is used to alleviate the task of computing a molecule's energy and wave-function, and it divides the latter into electronic and nuclear components because of the large nuclear mass. For 10 points, name this doubly-eponymous approximation.

A:
Science
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