In music or music theory, an eleventh is the Musical note, note eleven scale degrees from the root (chord), root of a chord (music), chord and also the interval (music), interval between the root and the eleventh. The interval can be also described as a Interval (music)#Simple and compound, compound perfect fourth, fourth, spanning an octave plus a fourth.
Since there are only seven degrees in a diatonic scale the eleventh degree is the same as the subdominant.
The eleventh is considered highly Consonance and dissonance, dissonant with the third (chord), major third.
A perfect eleventh is an eleventh which spans exactly 17 semitones.
See also
*Eleventh chord
*Suspended chord
References
Chord factors
Fourths (music)
Compound intervals
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