V2EX diminished fifth

Diminished Fifth

定义 Definition

减五度(diminished fifth):音乐理论中的一种音程,从某个音向上到第五个音级的距离,但比纯五度(perfect fifth)小一个半音。它与增四度(augmented fourth)在十二平均律中通常是同音异名,常被称为三全音(tritone),具有紧张、不稳定、需要解决的色彩。

例句 Examples

A diminished fifth sounds tense and unstable.
减五度听起来紧张而不稳定。

In classical harmony, the diminished fifth often resolves inward by step to form a consonant interval.
在古典和声中,减五度常常以内向的级进方式解决,形成更协和的音程。

发音 Pronunciation (IPA)

/dmnt ffθ/

词源 Etymology

diminished 来自拉丁语 diminuere(“使变小、减少”),在音乐里指把某个音程在标准形态基础上“缩小”。
fifth 来自古英语 fifta(“第五”),表示跨越五个音级的音程名称。合起来 diminished fifth 即“缩小了的五度”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Arnold Schoenberg, Theory of Harmony(《和声学》)
  • Walter Piston, Harmony(《和声》)
  • Stefan Kostka & Dorothy Payne, Tonal Harmony(《调性和声》)
  • Paul Hindemith, The Craft of Musical Composition(《作曲技法》)
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