Dyad (music)
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Dyad Music
All dyads within an octave on C. About this soundPlay 

In music, a dyad (less commonly, diad) is a set of two notes or pitches[1] that, in particular contexts, may imply a chord.

Dyads can be classified by the interval between the notes.[2] For example, the interval between C and E is a major third, which can imply a C major chord, made up of the notes C, E and G.[3] When the pitches of a dyad occur in succession, they form a melodic interval. When they occur simultaneously, they form a harmonic interval.

In a triadic context chords with omitted thirds may be considered "indeterminate" triads.[4] About this soundPlay 

The harmonic series is built over a fundamental pitch, and the rest of the partials in the series are called overtones. The second partial is an octave above the fundamental and the third pitch is a fifth, so if C is the fundamental pitch the second note is C an octave higher and then the next pitch would be G. The harmonic series has more fifths than just this one, for example the fourth to the sixth, the sixth to the ninth and the seventh to the eleventh partial are all a fifth away from each other, though the latter is of a slightly different size than the former ones.

Harmonic series with C as the fundamental.
Melodic and harmonic intervals, respectively above and below. About this soundPlay 

See also


  1. ^ 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 2009.
  2. ^ "Intervals and dyads - Open Music Theory". Open Music Theory. Retrieved .
  3. ^ Young, Doug (2008). Mel Bay Presents Understanding DADGAD, p.53. ISBN 978-0-7866-7641-5.
  4. ^ Benjamin, et al. (2008). Techniques and Materials of Music, p.191. ISBN 0-495-50054-2.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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