Diminished sixth
| Inverse | augmented third |
|---|---|
| Name | |
| Other names | - |
| Abbreviation | d6 |
| Size | |
| Semitones | 7 |
| Interval class | 5 |
| Just interval | 192:125, 32:21,49:32 |
| Cents | |
| Equal temperament | 700 |
| 24 equal temperament | 700 |
| Just intonation | 743 |
In classical music from Western culture, a diminished sixth (
Play ) is an interval produced by narrowing a minor sixth by a chromatic semitone. For example, the interval from A to F is a minor sixth, eight semitones wide, and both the intervals from A♯ to F, and from A to F♭ are diminished sixths, spanning seven semitones. Being diminished, it is considered a dissonant interval.
Its inversion is the augmented third, and its enharmonic equivalent is the perfect fifth.
A severely dissonant diminished sixth is observed when the instrument is tuned using a Pythagorean or a meantone temperament tuning system. Typically, this is the interval between G♯ and E♭. Since it seems to howl like a wolf (because of the beating), and since it is meant to be the enharmonic equivalent to a fifth, this interval is called the wolf fifth. Notice that a justly tuned fifth is the most consonant interval after the perfect unison and the perfect octave.
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