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

Cø11♯9C Half-Diminished 11th Sharp 9th

CRoot

D♯tone

F♯tone

A♯tone

D♯tone

Ftone

Formula 1 · ♭3 · ♭5 · ♭7 · ♭3 · 4 · Notes C · D♯ · F♯ · A♯ · D♯ · F

How to play it

Cø11♯9 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 Half-Diminished 11th Sharp 9th guitar chord — Open (x 3 1 1 2 2) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — Open (x 3 2 1 2 1) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — 5th position (8 6 6 8 5 x) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — 5th position (8 8 x 6 5 6) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — 5th position (8 8 6 6 5 x) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — 5th position (8 8 6 6 5 6) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — 5th position (8 8 6 6 5 8) fretboard diagram in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar chord — 5th position (8 8 8 6 5 6) fretboard diagram in Open A Tuning (EAEAC♯E)

Read it as tab

Cø11♯9 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 Half-Diminished 11th Sharp 9th guitar tab — Open (x 3 1 1 2 2) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — Open (x 3 2 1 2 1) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — 5th position (8 6 6 8 5 x) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — 5th position (8 8 x 6 5 6) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — 5th position (8 8 6 6 5 x) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — 5th position (8 8 6 6 5 6) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — 5th position (8 8 6 6 5 8) in Open A Tuning (EAEAC♯E)

C Half-Diminished 11th Sharp 9th guitar tab — 5th position (8 8 8 6 5 6) in Open A Tuning (EAEAC♯E)

Sound

How Cø11♯9 sounds

Consonance

1/ 5

Brightness

DarkBright

Character

Moods & genres

Moods

thickmurky

Genres

jazz

Theory

Notes & relationships

NotesC · D♯ · F♯ · A♯ · D♯ · F

Formula (scale degrees)1 · ♭3 · ♭5 · ♭7 · ♭3 · 4

Explore

More ways to play C Half-Diminished 11th Sharp 9th

Browse the rest of the C chords in this tuning, or open Cø11♯9 in the app for every voicing.

Cø11♯9 in other tunings:

See & hear Cø11♯9 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