A9 Guitar Chord
A9 Guitar Chord and alternate tunings. 7 chord voicings, charts and sounds. Chord notes and structure: A Db E G B (R 3 5 m7 9).
A9 Chord
Full name: A ninthAKA: A7(add9) A7/9
Guitar sound:
On this page:
ChartsInversionsLeft handed chartsStructureChord on other instrumentsRelated scalesChord staffSummary tableReferencesAdjust notes
A9 Guitar Chord Charts
Simplified notation: x 0 2 4 2 3
Difficulty level: Advanced


Simplified notation: 5 4 5 4 5 x
Difficulty level: Advanced


Simplified notation: x 12 11 12 12 12
Difficulty level: Advanced


Simplified notation: 5 7 5 6 5 7
Difficulty level: Professional


Simplified notation: 5 4 5 4 x 5


Simplified notation: x 0 2 0 2 0


Simplified notation: 5 2 2 2 2 3


A9 Inversions on guitar
A9 chord charts for left handed guitar







A9 Chord Structure
Notes: A Db E G BInterval structure: R 3 5 m7 9
Chord construction:
R = A
A + major interval = Db (scale degree = 3rd)
Db + minor interval = E (scale degree = 5th)
E + minor interval = G (scale degree = minor 7th)
G + major interval = B (scale degree = 9th)
A9 on other instruments
A9 piano




Change tuning
Scales Related to A9
Scales that include all of the notes of A9.D major D melodic minor E melodic minor D ionian B natural minor E dorian F#/Gb phrygian G lydian A mixolydian B aeolian C#/Db locrian F leading whole tone G overtone A overtone C#/Db altered D#/Eb altered D#/Eb enigmatic G#/Ab dorian b2 A#/Bb dorian b2 F augmented lydian
A9 chord staff

A9 summary table
Guitar chord name | A9 (A ninth) |
Guitar sound | |
Notes and structure | A Db E G B (R 3 5 m7 9) |
Alternate tunings | |
Chord Categories | is 7 (dom7) with added 9th 9th chord |
Other Notations | A7(add9) A7/9 |
Chord Construction | R = A A + major interval = Db (scale degree = 3rd) Db + minor interval = E (scale degree = 5th) E + minor interval = G (scale degree = minor 7th) G + major interval = B (scale degree = 9th) |
A9 on other instruments | A9 piano![]() ![]() ![]() ![]() ![]() |
Tweak notes of A9
G |
C# |
B |
E |
A |
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References related to this chord
is 7 (dom7) with added 9th 9th chordNinth Chords on Wikipedia
Major Seventh Chords on Wikipedia