Diminished sixth
In classical music from Western culture, a diminished sixth (Template:ErrorScript error: No such module "Category handler".) is an interval produced by narrowing a minor sixth by a chromatic semitone.[1][2] 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,[3] despite being equivalent to an interval known for its consonance.
Its inversion is the augmented third, and its enharmonic equivalent is the perfect fifth.
"Wolf fifth"
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A severely dissonant diminished sixth is observed when a fixed-pitch instrument limited to twelve notes per octave is tuned using Pythagorean tuning or a meantone temperament with a fifth flatter than 700 cents. Typically, this is the interval between G♯ and E♭. Since this interval was considered to "howl like a wolf" (because of the beating), and since it sounded like a badly out-of-tune fifth, this interval is called the "wolf" fifth. A justly tuned fifth is the most consonant interval after the perfect unison and the perfect octave.
References
- ↑ Benward & Saker (2003). Music: In Theory and Practice, Vol. I, p.54. Template:ISBN. Specific example of an d6 not given but general example of minor intervals described.
- ↑ Hoffmann, F.A. (1881). Music: Its Theory & Practice, p.89-90. Thurgate & Sons. Digitized Aug 16, 2007.
- ↑ Benward & Saker (2003), p.92.
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