Final answer:
The end of the exposition section in sonata form typically leads to a transition into the development section, where themes introduced in the exposition are explored and manipulated.
Step-by-step explanation:
At the end of the exposition section in sonata form, which is a structure used primarily in the first movement of sonatas, symphonies, and chamber works, the music is typically expected to transition smoothly into the development section.
The exposition itself introduces the main themes, usually presenting two contrasting themes in different keys. The first theme is presented in the home key, and the second theme appears in a related key, often the dominant or the relative major or minor key.
After the second theme and any closing material, the exposition often concludes with a strong cadence in the new key and may repeat before moving into the development section.