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Diminished 5th Interval

Definition

A diminished 5th interval is an interval that spans five half steps and creates a dissonant, tense sound. It is also known as a tritone.

Analogy

Think of a diminished 5th interval like the sound of a car horn blaring loudly in traffic. It grabs your attention and creates tension in the air.

Related terms

Tritone: A tritone is another name for a diminished 5th interval, spanning three whole steps or six half steps.

Perfect 4th: A perfect 4th is an interval that spans four half steps and has a consonant, stable sound.

Augmented 4th: An augmented 4th is an interval that spans five half steps and has a dissonant, tense sound similar to the diminished 5th.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.