Ninth
In music, a ninth is a compound interval consisting of an octave plus a second. Like the second, the interval of a ninth is classified as a dissonance in common practice tonality. Since a ninth is an octave larger than a second, its sonority level is considered less dense.
Extends: [Chord factors](https://wikipedia.org.ai/Chord factors), Seconds (music), [Compound intervals](https://wikipedia.org.ai/Compound intervals)
Properties
| Property | Expected Type | Description |
|---|---|---|
| [Main Interval Name](https://wikipedia.org.ai/Main Interval Name) | Text | major ninth |
| Inverse | Text | minor seventh |
| [Other Names](https://wikipedia.org.ai/Other Names) | Text | compound, second |
| Abbreviation | Text | M9 |
| Semitones | Text | 14 |
| [Cents Equal Temperament](https://wikipedia.org.ai/Cents Equal Temperament) | Text | 1400.0 |
| [Main Interval Name](https://wikipedia.org.ai/Main Interval Name) | Text | minor ninth |
| Inverse | Text | major seventh |
| Abbreviation | Text | m9 |
| Semitones | Text | 13 |
| [Cents Equal Temperament](https://wikipedia.org.ai/Cents Equal Temperament) | Text | 1300.0 |