Augmented third
Inverse | diminished sixth |
---|---|
Name | |
Other names | - |
Abbreviation | A3[1] |
Size | |
Semitones | 5 |
Interval class | 5 |
Just interval | 125:96,[2] 21:16, 64:49 |
Cents | |
Equal temperament | 500 |
24 equal temperament | 500 |
Just intonation | 457 |
![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Augmented_third_on_C.png/220px-Augmented_third_on_C.png)
Augmented third on C
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In classical music from Western culture, an augmented third (Play (help·info)) is an interval of five semitones. It may be produced by widening a major third by a chromatic semitone.[1][3] For instance, the interval from C to E is a major third, four semitones wide, and both the intervals from C♭ to E, and from C to E♯ are augmented thirds, spanning five semitones. Being augmented, it is considered a dissonant interval.[4]
Its inversion is the diminished sixth, and its enharmonic equivalent is the perfect fourth.
The just augmented third, E♯, is 456.99 cents or 125:96. Play (help·info) The Pythagorean augmented third, E♯+++, is 521.51 cents or 177147:131072, eleven just perfect fifths.
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Sources[]
- ^ Jump up to: a b Benward & Saker (2003). Music: In Theory and Practice, Vol. I, p.54. ISBN 978-0-07-294262-0.
- ^ Haluska, Jan (2003). The Mathematical Theory of Tone Systems, p.xxvi. ISBN 0-8247-4714-3. Classic augmented third.
- ^ Hoffmann, F.A. (1881). Music: Its Theory & Practice, p.89-90. Thurgate & Sons. Digitized Aug 16, 2007. Archaically: superfluous third.
- ^ Benward & Saker (2003), p.92.
Categories:
- Augmented intervals
- Thirds (music)