V2EX augmented fourth

Augmented Fourth

Definition / 释义

增四度:音乐理论中的一种音程,指在“纯四度”(如 CF)基础上再增大一个半音(如 CF)。它与“减五度”在十二平均律中常常同音异名,属于常见的不协和音程。(也常被称为“三全音 / tritone”的一种写法。)

Pronunciation / 发音

/mntd frθ/

Examples / 例句

The interval from C to F-sharp is an augmented fourth.
从 C 到 F 的音程是增四度。

In tonal harmony, an augmented fourth often creates tension that resolves to a more stable interval.
在调性和声中,增四度常常制造紧张感,并倾向于解决到更稳定的音程。

Etymology / 词源

augmented 源自拉丁语 augmentare(“增加、扩大”),在音乐术语里表示把原本的音程“扩大”半音;fourth 表示“四度”。因此 augmented fourth 字面意思就是“被增大的四度”。

Related Words / 相关词

Literary Works / 文学与经典作品举例

  • Arnold Schoenberg, Harmonielehre(《和声学》):讨论和声结构与不协和音程时会涉及增四度/三全音的功能与倾向。
  • Walter Piston, Harmony(《和声学》):在音程与和声张力、解决规则的章节中经常出现增四度相关内容。
  • Johann Joseph Fux, Gradus ad Parnassum(《通往帕纳苏斯之阶》):在对位法与不协和音处理的讨论中,会涉及与三全音(常含增四度/减五度)相关的观念。
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