Ab9 Guitar Chord

Ab9 guitar chord: see the fingering, compare positions, and hear it before you play.

Shape 1/2

Chord shapes:(2 positions)

Barre 4

Arpeggio for this shape

P - i - m - a - m - i · Smooth Bossa (2/4 · 6 notes · Level 2)

From the bass on the 6th to the 1st string there are 4 different notes. Six plucks give time to hear them. All 6 arpeggios

Subtle syncopation and oscillating timbre.

Speed:

What sets Ab9 apart

The notes of Ab9 are Ab, C, Eb, Gb and Bb. Ab is the root, C the major third, Eb the fifth, Gb the minor seventh and Bb the ninth. Said aloud, its notes are A flat, C, E flat, G flat and B flat.

String by string, low to high, it plays Ab, Eb, Gb, C, Eb and Bb. Eb appears twice in the main shape, and it is the chord's fifth. It runs from Ab on string 6 up to Bb on string 1.

For Ab9, your index finger barres fret 4. Your hand covers three frets, from 4 to 6. There is one more position, starting at fret 11.

Change only string 1 in Ab9 and you have Ab7. Inside Ab9 sits a complete Ebm chord, made of Eb, Gb and Bb. Ab shares four positions with this shape.

Ab9 belongs to only one key, Db major, where it is the V9.

Chord Progressions

Explore recommended harmonic circles on CifraLab:

Recommended practice sequences

01Ab Ab - Fm - Bbm - Eb7 02Cm Cm - Ab - Fm - G7

Music Theory & Formula

Component notes and harmonic structure (Ab9)

Formula: Dominant Ninth (1 - 3 - 5 - ♭7 - 9)

Constituent chord intervals:

Ab 1C 3Eb 5Gb ♭7Bb 9

Root Bass (Fundamental String)6th String (Low E) • Fret 4 (Ab)

String Control (Muted & Active)6 / 6 • Active and muted strings status indicator

2 Fretboard Positions

Other fretboard positions for Ab9:

Select each shape in the diagram above to view and listen to it

Barre 4

Barre fret 4

6 / 6 stringsRoot: 6th String (Low E)

String Control (Muted & Active):

Root

6th String (Low E)

Fret 4Barre

AbDegree 1

5th String (A)

Fret 6Finger 3

EbDegree 5

4th String (D)

Fret 4Barre

GbDegree ♭7

3rd String (G)

Fret 5Finger 2

CDegree 3

2nd String (B)

Fret 4Barre

EbDegree 5

1st String (High E)

Fret 6Finger 4

BbDegree 9

Placement tip: Barre fret 4. Press: 5th String (A) at fret 6 with your Ring finger, 3rd String (G) at fret 5 with your Middle finger, 1st String (High E) at fret 6 with your Pinky finger.

Barre 11

Barre fret 11

5 / 6 stringsRoot: 5th String (A)

String Control (Muted & Active):

6th String (Low E)

×Muted

Do not play

Root

5th String (A)

Fret 11Finger 2

AbDegree 1

4th String (D)

Fret 10Finger 1

CDegree 3

3rd String (G)

Fret 11Barre

GbDegree ♭7

2nd String (B)

Fret 11Barre

BbDegree 9

1st String (High E)

Fret 11Barre

EbDegree 5

Placement tip: Barre fret 11. Press: 5th String (A) at fret 11 with your Middle finger, 4th String (D) at fret 10 with your Index finger. Don't play: 6th String (Low E).

Biomechanics & Posture

Ergonomic tips to play without tension or fatigue (Ab9)

Barre

The shape in numbers

Item	In this chord
Frets	4 to 6
Barre	fret 4, from the 6th to the 2nd string
Fretting fingers	4
Open	none
Muted	none

What to check

At fret 4, only the barre sounds the 6th, 4th, and 2nd strings.

What every chord shares is in the fingering reading.

Transitions & Pivot Fingers

Most common chord transitions from Ab9

Listen: Ab9 → Ab · Eb · Eb7

Ab9 → Ab01

Pivot / Anchor Finger:4 shared positions

Stay in place

string 6, fret 4
string 5, fret 6
string 3, fret 5
string 2, fret 4

Move

string 4, fret 6
string 1, fret 4

Ab9 → Eb02

Pivot / Anchor Finger:2 shared positions

Stay in place

string 5, fret 6
string 1, fret 6

Move

string 4, fret 8
string 3, fret 8
string 2, fret 8

Ab9 → Eb703

Pivot / Anchor Finger:2 shared positions

Stay in place

string 5, fret 6
string 1, fret 6

Move

string 4, fret 8
string 3, fret 6
string 2, fret 8

Ab9 in every key

Ab9 sits in the scale of 1 keys.

Main shape at a glance

Difficulty: 4/5
Highest fret: 6
Frets the hand covers: 3
Barre: Yes
Strings that ring: 6/6
Fretting fingers: 4

Major keys

V9Db major

Ab9 on other instruments

PianoThe same notes on the keyboard.All togetherHear guitar, piano, bass and violin together.

Frequently asked questions

Frequently asked questions about the chord (Ab9)

The questions that come up most when playing this chord

Which strings are played and which are muted in the Ab9 chord?

To play the Ab9 chord on guitar, all 6 strings are played from the 6th string (Low E) to the 1st string (High E). Arch your finger joints perpendicular to the fretboard so adjacent strings ring clearly.

What is the root bass note of the Ab9 chord and on which string is it located?

The primary bass note of the Ab9 chord is its root note: Ab. In standard guitar tuning (EADGBe), this bass note is located on string 6 at fret 4.

When strumming or fingerpicking, strike this string first.

What notes make up the Ab9 chord and what is its formula?

The Ab9 chord is constructed using the 1 - 3 - 5 - ♭7 - 9 formula (Dominant Ninth). Its constituent pitches are Ab, C, Eb, Gb, Bb.

How do you prevent the Ab9 chord from buzzing or sounding muted?

To prevent fret buzz on the Ab9 barre chord, roll your index finger slightly outward (about 15 degrees) to press with its harder bony edge. Position your finger directly behind the fret wire and apply gentle arm pull from your back rather than squeezing with thumb force.

Study sheet · High resolution

Official Ab9 chord diagram

Ab9 guitar chord diagram with fingering for fingers 1 to 4

Download HD sheet

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Other chords in the Ab family:

Chord Ab Chord Ab7 Chord Abmaj7 Chord Abm7 Chord Abm Chord Abdim7 Chord Abaug Chord Abadd9