DIMINISHEDFOURTH

Diminished fourth

In classical music from Western culture, a diminished fourth is an interval produced by narrowing a perfect fourth by a chromatic semitone. For example, the interval from C to F is a perfect fourth, five semitones wide, and both the intervals from C to F, and from C to F are diminished fourths, spanning four semitones. Being diminished, it is considered a dissonant interval.

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diminished fourth

Noun

  1. A musical interval of the Western twelve-semitone system consisting of four semitones and spanning four degrees of the diatonic scale. It is one semitone narrower than a perfect fourth and enharmonically equivalent to a major third.


The above text is a snippet from Wiktionary: diminished fourth
and as such is available under the Creative Commons Attribution/Share-Alike License.

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