什么是奏鸣曲式

大多是在第一个乐章以及通常在如交响曲（symphony）、协奏曲、弦乐四重奏，及奏鸣曲等音乐作品类型中之其他乐章中的表现形式。奏鸣曲形式是由两部分形式，如：通常每一个部分都会重复之巴洛克式组曲的舞曲演变而成。第二部分一开始倾向於类似第一部分但调的顺序颠倒，并渐渐的增加而成为具重要份量的三部分形式。第一部分或一开始的阐述表现出通常分成两个主旋律群之基本主旋律的乐章，而第二部分则属调或是--如果该乐章属小调--相对属较大调。第二章节或接着的发展通常在前面的旋律较为自由，常常会变换各种不同的调。当返回主音调并且所有的主旋律在主音中重复时，这将引导出最後的章节或奏鸣曲形式的再现部。奏鸣曲形式在从大约1970年到最近的二十世纪的西方艺术音乐中，是器乐曲中最常见的形式。

sonata form

Form of most first movements and often other movements in such musical genres as the symphony, concerto, string quartet, and sonata. Sonata form evolved from two-part forms such as the dances of the baroque suite, each of whose parts was generally repeated. The second part, which initially tended to resemble the first part but reversed the order of its keys, gradually grew in size to become, in important respects, a three-part form. The first part, or exposition, presents the basic thematic material of the movement, which is often divided into two thematic groups, the second being in the dominant key or-if the movement is in a minor key-in the relative major key. The second section, or development, generally treats the earlier themes freely, often moving to various different keys. It leads to the final section, or recapitulation, when the tonic key returns and all the thematic material is repeated in the tonic. Sonata form was the most common form for instrumental works in Western art music from c. 1760 to the early 20th century.