Six String Guitar · Open D Tuning (DADF♯AD) · Capo 3

Ao9A Diminished ninth

F♯Root
Atone
Ctone
D♯tone
G♯tone

Formula 6 · 1 · ♭3 · ♭5 · 7  ·  Notes F♯ · A · C · D♯ · G♯

How to play it

Ao9 fingering positions

Open D Tuning (DADF♯AD) · Capo 3, low E on the left. Each dot is colour-coded by note — the ringed dot is the root. Numbers below show the fret per string (x = muted).

A Diminished ninth guitar chord — Open (4 0 x 2 3 1) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — Open (4 0 1 2 3 x) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — Open (4 3 x 2 0 1) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — Open (4 3 1 2 0 x) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — Open (4 0 1 2 3 1) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — 3rd position (4 3 x 3 6 6) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — 3rd position (4 3 6 3 6 x) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar chord — 3rd position (4 6 x 3 3 6) fretboard diagram in Open D Tuning (DADF♯AD) · Capo 3
Read it as tab

Ao9 guitar tab

The same voicings in tablature — high e on top, low E on the bottom. Each fret number is colour-coded by note; the ringed number is the root, × means don’t play that string.

A Diminished ninth guitar tab — Open (4 0 x 2 3 1) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — Open (4 0 1 2 3 x) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — Open (4 3 x 2 0 1) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — Open (4 3 1 2 0 x) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — Open (4 0 1 2 3 1) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — 3rd position (4 3 x 3 6 6) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — 3rd position (4 3 6 3 6 x) in Open D Tuning (DADF♯AD) · Capo 3
A Diminished ninth guitar tab — 3rd position (4 6 x 3 3 6) in Open D Tuning (DADF♯AD) · Capo 3
Sound

How Ao9 sounds

Consonance
1/ 5
Brightness
DarkBright
Character

Moods & genres

Moods
eerietense
Genres
jazzfilm score
Theory

Notes & relationships

NotesF♯ · A · C · D♯ · G♯
Formula (scale degrees)6 · 1 · ♭3 · ♭5 · 7
Same notes asAo7(add9)
Explore

More ways to play A Diminished ninth

Browse the rest of the A chords in this tuning, or open Ao9 in the app for every voicing.

Ao9 in other tunings:

StandardDrop DDrop COpen AOpen DOpen EOpen GOpen CDADGADHalf-Step Down

See & hear Ao9 in Chordology

The app shows every voicing across guitar, piano, bass, banjo and ukulele — in any tuning, with a capo, and you can play every chord back. All offline.

Hear every chordMore voicingsEvery tuning & capoWorks offline
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