f70efca528ba0d6d6a93b3f6084d1f75e171035f.txt Eleventh

Eleventh

Perfect eleventh on C. Playⓘ
perfect eleventh
Inverseperfect fifth
Name
Other namesCompound fourth
AbbreviationP11
Size
Semitones17
Interval class1
Just interval8:3
Cents
12-Tone equal temperament1700.0
Just intonation1698.0
Augmented eleventh on C. Playⓘ
augmented eleventh
Inversediminished fifth
Name
AbbreviationA11
Size
Semitones18
Interval class6
Just interval45:16
Cents
12-Tone equal temperament1800.0
Just intonation1790.2

In music theory, an eleventh is a compound interval consisting of an octave plus a fourth.

A perfect eleventh spans 17 and the augmented eleventh 18 semitones, or 10 steps in a diatonic scale.

Since there are only seven degrees in a diatonic scale, the eleventh degree is the same as the subdominant (IV).[1] The eleventh is considered highly dissonant with the major third.

An eleventh chord is the stacking of five thirds in the span of an eleventh. In common practice tonality, it usually had subdominant function as minor eleventh chord on the second degree (supertonic) of the major scale.

See also

References

  1. ^ Benward, Bruce; Saker, Marilyn (2003). Music: In Theory and Practice, Vol. I. McGraw-Hill Education. ISBN 978-0-07-294262-0.
Stub icon

This music theory article is a stub. You can help Wikipedia by expanding it.