Perfect eleventh on C. ⓘ
| Inverse | perfect fifth |
|---|---|
| Name | |
| Other names | Compound fourth |
| Abbreviation | P11 |
| Size | |
| Semitones | 17 |
| Cents | |
| 12-Tone equal temperament | 1700.0 |
Augmented eleventh on C. ⓘ
| Inverse | diminished fifth |
|---|---|
| Name | |
| Abbreviation | A11 |
| Size | |
| Semitones | 18 |
| Cents | |
| 12-Tone equal temperament | 1800.0 |
In music or music theory, an eleventh ⓘ is the note eleven scale degrees from the root of a chord and also the interval between the root and the eleventh. The interval can also be described as a compound 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 dissonant with the major third.
A perfect eleventh is an eleventh which spans exactly 17 semitones.
See also
References
| Twelve- semitone (post-Bach Western) |
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| Other tuning systems |
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| Other intervals |
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