Sonata form topic

Sonata form is a musical form that has been used widely since the early Classical period. It has typically been used in the first movement of multimovement pieces, and is therefore more specifically referred to as sonata-allegro form or first-movement form. Study of the 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. The standard definition focuses on the thematic and harmonic... full article at wikipedia