A9 Piano Chord
A9 for Piano has the notes A Db E G B. Listen to it and learn about its interval structure: R 3 5 m7 9.
A9 Chord
Full name: A ninthAKA: A7(add9) A7/9
Piano sound:
On this page:
ChartsInversionsStructureChord on other instrumentsRelated scalesChord staffSummary tableReferencesAdjust notes
A9 Piano Chord Charts
Piano chord chart

A9 Inversions on piano
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




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
Piano chord name | A9 (A ninth) |
Piano sound | |
Notes and structure | A Db E G B (R 3 5 m7 9) |
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
C#
Db
D#
Eb
F#
Gb
G#
Ab
A#
Bb
C#
Db
D#
Eb
F#
Gb
G#
Ab
A#
Bb
C
D
E
F
G
A
B
C
D
E
F
G
A
B
References related to this chord
is 7 (dom7) with added 9th 9th chordNinth Chords on Wikipedia
Major Seventh Chords on Wikipedia