What section follows the Exposition in the Sonata Allegro form?

In the Sonata Allegro form, which is a structure commonly used in the first movement of sonatas, symphonies, and chamber music, the section that follows the Exposition is the Development.

The Exposition introduces the primary themes of the piece, typically presenting two contrasting themes in different keys. Following this, the Development section takes these themes and explores them, often through modulation and variation. This part is characterized by its exploration and development of the musical material, creating tension and contrast before returning to the themes established in the Exposition.

Understanding this sequence is crucial as it highlights how composers build upon and manipulate themes to create a dynamic and compelling musical narrative. The Recapitulation, which follows the Development, restates the themes from the Exposition but resolves them in the home key, providing closure to the work. The Coda can follow the Recapitulation as a concluding section, while an Intermezzo is not typically a standard part of the Sonata Allegro form. This structured development is fundamental to creating the dramatic arc in classical music compositions.