I'm not sure what you mean... The form of the sonata is sonata
form. Or if you want to get fancy, it's First Movement
Sonata-Allegro Form.
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Sonata form is a musical structure used in the 18th century. The
three movements of sonata form are exposition, development, and
recapitulation.
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Sonata-allegro form is a form with three main divisions:
exposition, development and recapitulation (a coda is frequently
added). It is not same as binary or ternary forms. The sonata form
is a form itself.
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in sonata form the contrasting key is established by statement
of