Fretwise Get the app

Guitar chord · Dominant 7sus4b9

Ab7sus4b9 chord (Ab Dominant 7sus4b9)

Dominant 7th with a suspended 4th and a flat 9th: it comes from the Dorian ♭2 scale.

Notes AbDbEbGbA
Formula 1 4 5 ♭7 ♭9
Shapes 3 on this page

Ab7sus4b9 chord shapes

Tap a diagram to strum it. Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. Blue dots are the root, Ab.

6th String Root 4 x 4 2 2 x
5th String Root x 11 11 11 10 x
4th String Root x x 6 6 7 5

Interactive chord diagram

Ab7sus4b9 on the fretboard

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E ✕ ✕ ✕ ✕ ✕ ✕

Tap any note to hear it.

Scales to play over Ab7sus4b9

These scales start on Ab and contain every note of the chord, so they fit when Ab7sus4b9 is the chord of the moment.

Fretwise · Free on iPhone & Android

Practise Ab7sus4b9 and every other chord anywhere, even offline.

This page is a small slice of Fretwise. The app adds practice: exercises that play as tab, a new routine every day, and the tools to tune and keep time. On iPhone, iPad and Android, no sign-up.

Free

  • 65 scales and 56 chord types in every key, with CAGED shapes
  • A tuner with 10 tunings and a metronome from 30 to 260 BPM
  • A new Daily 15 routine every day, plus free exercises
  • Maqam & makam between the frets, and the Name the Note quiz

One purchase

  • 282 exercises that play as tab, and routines with a speed trainer
  • Chord & Scale Finder: tap the neck, get the name
  • Theory Lab and the Progression Builder with 51 genre loops
  • No subscription, ads removed

Questions

What notes are in a Ab7sus4b9 chord?
Ab7sus4b9 is Ab, Db, Eb, Gb, A: the 1, 4, 5, ♭7, ♭9 of Ab.
How do you play Ab7sus4b9 on guitar?
6th String Root: 4 x 4 2 2 x; 5th String Root: x 11 11 11 10 x; 4th String Root: x x 6 6 7 5 (low E to high E, x = don't play the string).
What scale goes with Ab7sus4b9?
Scales on Ab that contain every note of Ab7sus4b9: Ab Phrygian, Ab Phrygian Dominant, Ab Dorian b2, Ab In Sen, Ab Mixolydian b2.

Dominant 7sus4b9 chords in every key

More Ab chords