C♯ø♭9(add11)C♯ Half-Diminished minor ninth Added 11th
DRoot
Ftone
G♯tone
Ctone
D♯tone
Gtone
Formula ♭2 · 3 · 5 · 7 · 2 · ♭5 · Notes D · F · G♯ · C · D♯ · G
How to play it
C♯ø♭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
C♯ø♭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 C♯ø♭9(add11) sounds
Consonance
1/ 5
Brightness
DarkBright
Character
Moods & genres
Moods
bleakhollow
Genres
experimental
Theory
Notes & relationships
NotesD · F · G♯ · C · D♯ · G
Formula (scale degrees)♭2 · 3 · 5 · 7 · 2 · ♭5
Same notes asC♯o♭9(add11)C♯ø11♭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 C♯ø♭9(add11) in the app for every voicing.
C♯ø♭9(add11) in other tunings:
See & hear C♯ø♭9(add11) 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