Four String Bass · Drop D (DADG) · Capo 3

Cø7♯9C Half-Diminished 7th Sharp 9th

CRoot

D♯tone

F♯tone

A♯tone

D♯tone

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

How to play it

Cø7♯9 fingering positions

Drop D (DADG) · 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).

C Half-Diminished 7th Sharp 9th guitar chord — 5th position (7 6 5 5) fretboard diagram in Drop D (DADG) · Capo 3

C Half-Diminished 7th Sharp 9th guitar chord — 7th position (7 10 10 8) fretboard diagram in Drop D (DADG) · Capo 3

C Half-Diminished 7th Sharp 9th guitar chord — 17th position (19 18 17 17) fretboard diagram in Drop D (DADG) · Capo 3

Read it as tab

Cø7♯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 7th Sharp 9th guitar tab — 5th position (7 6 5 5) in Drop D (DADG) · Capo 3

C Half-Diminished 7th Sharp 9th guitar tab — 7th position (7 10 10 8) in Drop D (DADG) · Capo 3

C Half-Diminished 7th Sharp 9th guitar tab — 17th position (19 18 17 17) in Drop D (DADG) · Capo 3

Sound

How Cø7♯9 sounds

Consonance

1/ 5

Brightness

DarkBright

Character

Moods & genres

Moods

thickdark

Genres

jazz

Theory

Notes & relationships

NotesC · D♯ · F♯ · A♯ · D♯

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

Explore

More ways to play C Half-Diminished 7th Sharp 9th

Browse the rest of the C chords in this tuning, or open Cø7♯9 in the app for every voicing.

Cø7♯9 in other tunings:

See & hear Cø7♯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.

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