Six String Guitar · Standard Tuning (EADGBE)

Cø7♭9C Half-Diminished 7th Flat 9th

CRoot

D♯tone

F♯tone

A♯tone

C♯tone

Formula 1 · ♭3 · ♭5 · ♭7 · ♭2 · Notes C · D♯ · F♯ · A♯ · C♯

How to play it

Cø7♭9 fingering positions

Standard Tuning (EADGBE), 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 Flat 9th guitar chord — Open (x 3 1 3 2 2) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 3rd position (x 3 4 6 4 6) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 6th position (8 6 x 6 7 6) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 6th position (8 6 8 6 7 x) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 6th position (8 6 8 6 7 6) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 7th position (8 x 8 8 7 9) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 7th position (8 9 8 8 7 9) fretboard diagram in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar chord — 8th position (8 9 8 8 x 9) fretboard diagram in Standard Tuning (EADGBE)

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 Flat 9th guitar tab — Open (x 3 1 3 2 2) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 3rd position (x 3 4 6 4 6) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 6th position (8 6 x 6 7 6) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 6th position (8 6 8 6 7 x) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 6th position (8 6 8 6 7 6) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 7th position (8 x 8 8 7 9) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 7th position (8 9 8 8 7 9) in Standard Tuning (EADGBE)

C Half-Diminished 7th Flat 9th guitar tab — 8th position (8 9 8 8 x 9) in Standard Tuning (EADGBE)

Sound

How Cø7♭9 sounds

Consonance

1/ 5

Brightness

DarkBright

Character

Moods & genres

Moods

bleakdissonant

Genres

jazzclassical

Theory

Notes & relationships

NotesC · D♯ · F♯ · A♯ · C♯

Formula (scale degrees)1 · ♭3 · ♭5 · ♭7 · ♭2

Same notes asCø♭9 Co♭9

Explore

More ways to play C Half-Diminished 7th Flat 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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