Cø♭9(add11)C Half-Diminished minor ninth Added 11th
CRoot
D♯tone
F♯tone
A♯tone
C♯tone
Ftone
Formula 1 · ♭3 · ♭5 · ♭7 · ♭2 · 4 · Notes C · D♯ · F♯ · A♯ · C♯ · F
How to play it
Cø♭9(add11) fingering positions
Open E Tuning (EBEG♯BE), 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).






Read it as tab
Cø♭9(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.






Sound
How Cø♭9(add11) sounds
Consonance
1/ 5
Brightness
DarkBright
Character
Moods & genres
Moods
bleakhollow
Genres
experimental
Theory
Notes & relationships
NotesC · D♯ · F♯ · A♯ · C♯ · F
Formula (scale degrees)1 · ♭3 · ♭5 · ♭7 · ♭2 · 4
Same notes asCo♭9(add11)Cø11♭9
Explore
More ways to play C Half-Diminished minor ninth Added 11th
Browse the rest of the C chords in this tuning, or open Cø♭9(add11) in the app for every voicing.
Cø♭9(add11) in other tunings:
See & hear Cø♭9(add11) in Chordology
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