Six String Guitar · Open A Tuning (EAEAC♯E)

Co9(add11)C Diminished ninth Added 11th

CRoot

D♯tone

F♯tone

Atone

Dtone

Ftone

Formula 1 · ♭3 · ♭5 · 6 · 2 · 4 · Notes C · D♯ · F♯ · A · D · F

How to play it

Co9(add11) fingering positions

Open A Tuning (EAEAC♯E), 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).

C Diminished ninth Added 11th guitar chord — 8th position (8 8 10 9 8 11) fretboard diagram in Open A Tuning (EAEAC♯E)

C Diminished ninth Added 11th guitar chord — 8th position (8 8 11 9 8 10) fretboard diagram in Open A Tuning (EAEAC♯E)

C Diminished ninth Added 11th guitar chord — 8th position (8 9 10 8 8 11) fretboard diagram in Open A Tuning (EAEAC♯E)

C Diminished ninth Added 11th guitar chord — 8th position (8 9 11 8 8 10) fretboard diagram in Open A Tuning (EAEAC♯E)

Read it as tab

Co9(add11) 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.

C Diminished ninth Added 11th guitar tab — 8th position (8 8 10 9 8 11) in Open A Tuning (EAEAC♯E)

C Diminished ninth Added 11th guitar tab — 8th position (8 8 11 9 8 10) in Open A Tuning (EAEAC♯E)

C Diminished ninth Added 11th guitar tab — 8th position (8 9 10 8 8 11) in Open A Tuning (EAEAC♯E)

C Diminished ninth Added 11th guitar tab — 8th position (8 9 11 8 8 10) in Open A Tuning (EAEAC♯E)

Sound

How Co9(add11) sounds

Consonance

1/ 5

Brightness

DarkBright

Character

Moods & genres

Moods

chaoticdissonant

Genres

jazz

Theory

Notes & relationships

NotesC · D♯ · F♯ · A · D · F

Formula (scale degrees)1 · ♭3 · ♭5 · 6 · 2 · 4

Same notes asCo11

Explore

More ways to play C Diminished ninth Added 11th

Browse the rest of the C chords in this tuning, or open Co9(add11) in the app for every voicing.

Co9(add11) in other tunings:

See & hear Co9(add11) 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.

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