Six String Guitar · Open A Tuning (EAEAC♯E)

C♯o9(add4)C♯ Diminished ninth Added 4th

DRoot

Ftone

Gtone

G♯tone

Btone

Etone

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

How to play it

C♯o9(add4) fingering positions

Open A Tuning (EAEAC♯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 ninth Added 4th guitar chord — 9th position (9 9 11 10 9 12) fretboard diagram in Open A Tuning (EAEAC♯E)

C♯ Diminished ninth Added 4th guitar chord — 9th position (9 9 12 10 9 11) fretboard diagram in Open A Tuning (EAEAC♯E)

C♯ Diminished ninth Added 4th guitar chord — 9th position (9 10 11 9 9 12) fretboard diagram in Open A Tuning (EAEAC♯E)

C♯ Diminished ninth Added 4th guitar chord — 9th position (9 10 12 9 9 11) fretboard diagram in Open A Tuning (EAEAC♯E)

Read it as tab

C♯o9(add4) 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 ninth Added 4th guitar tab — 9th position (9 9 11 10 9 12) in Open A Tuning (EAEAC♯E)

C♯ Diminished ninth Added 4th guitar tab — 9th position (9 9 12 10 9 11) in Open A Tuning (EAEAC♯E)

C♯ Diminished ninth Added 4th guitar tab — 9th position (9 10 11 9 9 12) in Open A Tuning (EAEAC♯E)

C♯ Diminished ninth Added 4th guitar tab — 9th position (9 10 12 9 9 11) in Open A Tuning (EAEAC♯E)

Sound

How C♯o9(add4) sounds

Consonance

1/ 5

Brightness

DarkBright

Character

Moods & genres

Moods

crampeddissonant

Genres

experimental

Theory

Notes & relationships

NotesD · F · G · G♯ · B · E

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

Explore

More ways to play C♯ Diminished ninth Added 4th

Browse the rest of the C♯ chords in this tuning, or open C♯o9(add4) in the app for every voicing.

C♯o9(add4) in other tunings:

See & hear C♯o9(add4) 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

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