English Dictionary

augmented fourth

名詞

(music) A type of tritone in musical composition comprising six semitones. It spans four diatonic scale degrees like a perfect fourth but with an extension of a semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth.

日本語の意味

（音楽）増四度 - 半音6つからなる特殊な音程。これは完全四度に1半音を追加した形になっており、単に縮小五度とならない、ダイアトニックな度数の4を形成する音程である。

The composer inserted an augmented fourth at the cadence to heighten the tension before the final resolution.

作曲家は、最終解決の前に緊張を高めるために、終止で6半音に相当する増四度を挿入した。

意味（1）

(music) A type of tritone in musical composition comprising six semitones. It spans four diatonic scale degrees like a perfect fourth but with an extension of a semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth.

e.g. C - F is a perfect fourth, C - F# is an augmented fourth, and C - F♭ is a diminished fourth.

augmented fourths （ plural ）