|
Sonata rondo form was a musical form often used during the Classical music era. As the name implies, it is a blend of sonata form and rondo form. == Structure == An explanation of sonata rondo form requires first some preliminary coverage of rondo form and sonata form. Rondo form involves the repeated use of a theme, set in the tonic key, with episodes, each involving a new theme, intervening among the repetitions, like this: A B A C A D A ... Sometimes the A section is varied slightly. The episodes (B, C, D, etc.) are normally in a different key from the tonic. A sonata form movement is divided into sections. It may begin with an ''introduction'', which is commonly slower than the remainder of the movement. The first compulsory section is the ''exposition'', whose purpose is to present the movement's main thematic material. This takes the form of one or two themes or theme groups, the second of which is commonly in a related key. This is often the dominant in major-key movements, or the relative major in minor-key movements. The two groups are linked via a modulating transition, or bridge, passage. The exposition may conclude with a short ''codetta'' and/or closing theme, and may be repeated. In the succeeding ''development'' section, existing thematic material may be presented in new harmonic and textural contexts, and/or entirely new material may be introduced. The development transitions into the ''recapitulation'', where all themes or theme groups from the exposition are now presented in the tonic key. (B' )exp ()dev (B )recap In the notation, a single prime (') means "in the dominant" and a double prime (") means "in remote keys". Occasionally, sonata form includes an "episodic development," which uses mostly new thematic material. Two examples are the first movements of Mozart's piano sonata K. 330 and Beethoven's piano sonata Op. 14, no. 1.〔For further discussion see Rosen (1997, 51).〕 The episodic development is often the kind of development that is used in sonata rondo form, to which we now turn. The simplest kind of sonata rondo form is a sonata form that repeats the opening material in the tonic as the beginning of the development section. (B' )exp (C" )dev (B )recap By adding in this extra appearance of A, the form reads off as AB'AC"AB, hence the alternation of A with "other" material that characterizes the rondo. Note that if the development is an episodic development, then C" will be new thematic material—thus increasing the resemblance of sonata rondo form to an actual rondo. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「sonata rondo form」の詳細全文を読む スポンサード リンク
|