Six String Guitar · Half-Step Down (E♭A♭D♭G♭B♭E♭)

C♯o11♭9C♯ Diminished 11th Flat 9th

DRoot

Ftone

G♯tone

Btone

D♯tone

Gtone

Formula ♭2 · 3 · 5 · ♭7 · 2 · ♭5 · Notes D · F · G♯ · B · D♯ · G

How to play it

C♯o11♭9 fingering positions

Half-Step Down (E♭A♭D♭G♭B♭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 11th Flat 9th guitar chord — 9th position (10 10 9 10 9 11) fretboard diagram in Half-Step Down (E♭A♭D♭G♭B♭E♭)

C♯ Diminished 11th Flat 9th guitar chord — 10th position (10 10 13 13 12 13) fretboard diagram in Half-Step Down (E♭A♭D♭G♭B♭E♭)

Read it as tab

C♯o11♭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♯ Diminished 11th Flat 9th guitar tab — 9th position (10 10 9 10 9 11) in Half-Step Down (E♭A♭D♭G♭B♭E♭)

C♯ Diminished 11th Flat 9th guitar tab — 10th position (10 10 13 13 12 13) in Half-Step Down (E♭A♭D♭G♭B♭E♭)

Sound

How C♯o11♭9 sounds

Consonance

1/ 5

Brightness

DarkBright

Character

Moods & genres

Moods

menacinghollow

Genres

experimental

Theory

Notes & relationships

NotesD · F · G♯ · B · D♯ · G

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

Explore

More ways to play C♯ Diminished 11th Flat 9th

Browse the rest of the C♯ chords in this tuning, or open C♯o11♭9 in the app for every voicing.

C♯o11♭9 in other tunings:

See & hear C♯o11♭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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