Mixed-interval chord

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] 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] This music theory article is a stub.