Reference : ninth chords jazz symbols

Minor seventh and major ninth intervals

9 adds minor seventh and a major ninth intervals to a triad (Bb, D in these examples):

Dominant major 9th

Dominant major 9th (sus4)

Dominant major 9th (#5)

Dominant major 9th (b5)

Minor 7th, major 9th

Half diminished 7th, major 9th

Minor seventh and ninth intervals

7^(b9) adds minor seventh and ninth intervals to a triad (Bb, Db):

Dominant minor 9th

Dominant minor 9th (sus4)

Dominant minor 9th (#5)

Dominant minor 9th (b5)

Half diminished 7th, minor 9th

Major seventh and ninth intervals

Maj9 adds major seventh and ninth intervals to a triad (B, D):

Major 7th, major 9th

Minor triad, major 7th, major 9th

Major 7th (#5), major 9th

Minor seventh and augmented ninth intervals

7^(#9) adds minor seventh and augmented ninth to a triad (Bb, D#/Eb):

dominant 7th, augmented 9th

dominant 7th (sus4)
augmented 9th

dominant 7th (5#)
augmented 9th

Ninth without seventh

add 9 or omit 7 adds a ninth to a triad:

major triad, major 9th

major triad, major 9th

See also:

Triads, Ninth Chords, Other Extensions

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José Rodríguez Alvira.