View source for Mixed-interval chord

[[Image:Schoenberg Klavierstuck op. 33a mixed-interval chords.png|thumb|350px|Mixed-interval chords from the opening to [[Arnold Schoenberg]]'s ''[[Klavierstück]]'' Op. 33a<ref>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}}.</ref> ({{audio|Schoenberg Klavierstuck op. 33a mixed-interval chords.mid|Play}}).]]

In [[music]] a '''mixed-interval chord''' is a [[chord (music)|chord]] not characterized by one consistent [[interval (music)|interval]]. Chords characterized by one consistent interval, or primarily but with alterations, are '''equal-interval chords'''. Mixed interval chords "lend themselves particularly" to [[atonality|atonal]] music since they tend to be [[Consonance and dissonance|dissonant]].<ref name="Reisberg">Reisberg (1975), p.362.</ref>

[[Image:Interval cycles C1-C4 and C6.PNG|thumb|350px|right|[[Interval cycle]]s: C1&ndash;C4 and C6; feature equal-intervals.]]

Equal-interval chords are often of indeterminate [[root (chord)|root]] and mixed-interval chords are also often best characterized by their interval content.<ref name="Reisberg"/> "Equal-interval chords are often altered to make them 'impure' as in the case of [[quartal and quintal harmony|quartal and quintal chords]] with [[tritone]]s, chords based on seconds with varying intervals between the seconds."<ref name="Reisberg"/>

==References==
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[[Category:Chords]]
[[Category:Post-tonal music theory]]