Mixed-interval chord

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Mixed-interval chords from the opening to Arnold Schoenberg's Klavierstück Op. 33a^[1] (

Play (help·info)).

In music a mixed-interval chord is a chord not characterized by one consistent interval. Chords characterized by one consistent interval, or primarily but with alterations, are equal-interval chords. Mixed interval chords "lend themselves particularly" to atonal music since they tend to be dissonant.^[2]

Interval cycles: C1–C4 and C6; feature equal-intervals.

Equal-interval chords are often of indeterminate root and mixed-interval chords are also often best characterized by their interval content.^[2] "Equal-interval chords are often altered to make them 'impure' as in the case of quartal and quintal chords with tritones, chords based on seconds with varying intervals between the seconds."^[2]

References

↑ Reisberg, Horace (1975). "The Vertical Dimension in Twentieth Century Music", p.371, Aspects of Twentieth-Century Music, chap. 5, p.362-72. Wittlich, Gary (ed.). Englewood Cliffs, New Jersey: Prentice-Hall. ISBN 0-13-049346-5.
↑ 2.0 2.1 2.2 Reisberg (1975), p.362.

Chords

By form

Triad	Major Minor Augmented Diminished Suspended

Seventh	Major Minor Dominant Dominant seventh flat five Diminished Half-diminished Diminished major Minor-major Augmented major Augmented minor Altered seventh Nondominant Harmonic seventh

Extended	Ninth Eleventh Thirteenth Upper structure Dominant 7♯9 Polychord Tone cluster

Added / omitted	Sixth Augmented sixth Lydian Seven six

Specific	Alpha Complexe sonore Dream Elektra Farben Grandmother Magic µ Mystic Northern lights Petrushka Psalms So What Tristan Viennese trichord

General	Mixed interval Quartal and quintal harmony Synthetic chord

By function

Diatonic	Tonic Dominant Subdominant Supertonic Mediant Submediant Leading / Subtonic

Altered	Approach Borrowed Chromatic mediant Neapolitan Passing

Secondary	Secondary dominant Secondary leading-tone Secondary supertonic

Other	Common Contrast Primary triad Subsidiary

Techniques

Other

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