二段體

二段體ji6 dyun6 tai2（binary form）喺音樂上係指一首樂曲分兩大段，而且通常兩段都會重複，即係 A-A-B-B（A 同 B 分別代表咗嗰兩大段）噉嘅樣。

概念[編輯]

二段體係一種音樂形式（musical form）。喺樂理當中，音樂形式大致係一指一首樂曲「結構」係點：一首曲可以分好多段小節，每段小節有若干吓拍子，而小節又可以再細分做若干組，每組有若干段小節，組同組之間成某啲特定嘅關係，噉嘅關係就係所謂嘅音樂形式^[1]。

二段體指首音樂分兩大段，兩段嘅長度差唔多一樣咁滯。好出名嘅英格蘭民謠《綠袖子》（Greensleeves；下圖）就係一首二段體嘅曲，由樂譜度可見，首曲分四段，頭嗰兩段（AA'）彼此之間旋律好相似（A' = A 嘅變種），而跟尾嗰兩段（BB'）又係彼此之間旋律好相似，形成 AABB 噉嘅二段體形式^[2]。

$\header { tagline = "" } \paper { line-width = 340\pt indent = 0 } \layout { \context { \Score \omit BarNumber }} \score { \absolute \transpose c c' { \clef treble \key f \major \time 6/8 \partial 8 \mark "A" g8 | bes4 c'8 d'8.[e'16 d'8] | c'4 a8 f8.[g16 a8] | bes4 g8 g8.[fis16 g8] a4 fis8 d4 \bar "" \break \mark "A′" g8 | bes4 c'8 d'8.[e'16 d'8] | c'4 a8 f8.[g16 a8] | bes8.[a16 g8] fis8.[e16 fis8] | g2. \bar "||" \break \mark "B" f'4. f'8.[e'16 d'8] | c'4 a8 f8.[g16 a8] | bes4 g8 g8.[fis16 g8] | a4 fis8 d4. | \break \mark "B′" f'4. f'8.[e'16 d'8] | c'4 a8 f8.[g16 a8] | bes8.[a16 g8] fis8.[e16 fis8] | g2. | \bar "||" } % transpose } % score$

《綠袖子》

睇埋[編輯]

音樂理論

攷[編輯]

↑ Musical Form. Music appreciation.
↑ Kostka, Payne, Stefan, Dorothy (2009). Tonal Harmony with an Introduction to Twentieth-Century Music. 1221 Avenue of the Americas, New York, NY 10020: McGraw-Hill. p. 335.

[musicform-1] Musical Form. Music appreciation.

[2] Kostka, Payne, Stefan, Dorothy (2009). Tonal Harmony with an Introduction to Twentieth-Century Music. 1221 Avenue of the Americas, New York, NY 10020: McGraw-Hill. p. 335.

[1]

[2]