Exposition in music

1. What is an exposition mean in music?
2. What is the exposition in sonata form?
3. What is the exposition in a concerto?
4. Why is the exposition divided into two parts?

What is an exposition mean in music?

In musical form and analysis, exposition is the initial presentation of the thematic material of a musical composition, movement, or section. The use of the term generally implies that the material will be developed or varied.

What is the exposition in sonata form?

In sonata form the exposition corresponds to the first part of binary form, the development and recapitulation to the second. The exposition moves from the original key to a new key; the development passes through several keys and the recapitulation returns to the original key.

What is the exposition in a concerto?

In concerto. …the concerto's first movement, the exposition often remains in the tonic key while played by the entire orchestra the first time through. The expected departure to a nearly related key and the introduction of the soloist are reserved to a characteristically more elaborate repetition of the exposition.

Why is the exposition divided into two parts?

The two-part exposition is divided into two parts: the first part ends with the arrival of the medial caesura (MC, the major cadence, often accompanied by a musical pause, in the middle of the exposition), and the second part follows the MC and ends with the essential expositional closure (EEC, the major PAC in the ...