Sonata form is a large-scale musical structure used widely since the middle of the 18th century.
While it is typically used in the first movement of multi-movement pieces, it is sometimes used in subsequent movements as well?particularly the final movement. The teaching of sonata form in music theory rests on a standard definition and a series of hypotheses about the underlying reasons for the durability and variety of the form?a definition that arose in the second quarter of the 19th century. T...
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