Dyad (music)
Pair of pitches that may imply a chord
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Intervals.png/429px-Intervals.png)
In music, a dyad (less commonly, diad) is a set of two notes or pitches[1]. The notes of a dyad can be played simultaneously or in succession. Notes played in succession form a melodic interval; notes played simultaneously form a harmonic interval.
Dyads can be classified by the interval between the notes.[2] For example, the interval between C and E (four half steps) is a major third, which can imply a C major chord, made up of the notes C, E and G.[3]
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/C_indeterminate_chord.png/220px-C_indeterminate_chord.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Melodic_and_harmonic_intervals.png/275px-Melodic_and_harmonic_intervals.png)
See also
- Double stop
- Interval (music)
- Power chord
- Harmonic series (music)
- Counterpoint
References
- ^ Harnsberger, Lindsey C. (1997). "dyad". Essential Dictionary of Music: Definitions, Composers, Theory, Instrument & Vocal Ranges. Los Angeles: Alfred Publishing. p. 47. ISBN 0-88284-728-7. OCLC 35172595. Retrieved 24 February 2009.
- ^ "Intervals and dyads – Open Music Theory". Open Music Theory. Retrieved 2015-12-06.
- ^ Young, Doug (2008). Mel Bay Presents Understanding DADGAD, p.53. ISBN 978-0-7866-7641-5.
- ^ Benjamin, et al. (2008). Techniques and Materials of Music, p.191. ISBN 0-495-50054-2.
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Pitch segments by cardinality (list)
- Monad
- Dyad
- Trichord
- Viennese
- Tetrachord
- All-interval
- Pentachord
- Hexachord
- All-trichord
- Chromatic
- Diatonic
- Mystic
- "Ode-to-Napoleon"
- Petrushka
- Sacher
- Schoenberg
- Aggregate
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