Six String Guitar · Drop C Tuning (CGCFAD) · Capo 1

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

Drop C Tuning (CGCFAD) · Capo 1, 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 — 5th position (8 x 5 6 5 8) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 6th position (8 7 x 6 8 8) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 8th position (8 10 10 9 x 9) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 8th position (8 x 11 9 8 8) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 8th position (8 10 10 9 8 9) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 8th position (8 10 10 9 11 9) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 8th position (8 10 11 9 8 8) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar chord — 11th position (x 13 11 12 13 12) fretboard diagram in Drop C Tuning (CGCFAD) · Capo 1

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 — 5th position (8 x 5 6 5 8) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 6th position (8 7 x 6 8 8) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 8th position (8 10 10 9 x 9) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 8th position (8 x 11 9 8 8) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 8th position (8 10 10 9 8 9) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 8th position (8 10 10 9 11 9) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 8th position (8 10 11 9 8 8) in Drop C Tuning (CGCFAD) · Capo 1

A Diminished ninth guitar tab — 11th position (x 13 11 12 13 12) in Drop C Tuning (CGCFAD) · Capo 1

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:

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

Download on theApp Store