Guitar, piano and ukulele chords

C♯dim chord (C sharp diminished)

The C♯dim chord (C sharp diminished) has 3 notes: C♯, E and G. It is a diminished chord: root, minor third and diminished fifth. It sounds very tense and unstable. It works as vii° in D major and ii° in B minor.

How to play it on guitar

An x is a string you don't play and 0 is an open string. The number on the left is the fret where the shape starts.

4fr ××
Usual shape
x4565x
8fr ××
Easy version
xx(11)989

Notes in the chord

NoteInterval
C♯Root
EMinor third
GDiminished fifth

Inversions

  • Root position: C♯ – E – G
  • First inversion: E – G – C♯
  • Second inversion: G – C♯ – E

On piano

The highlighted keys (C♯, E and G) make the chord in root position.

On ukulele

3fr
Usual shape
6434
6fr
Higher up the neck · fret 6
6797

Progressions to practise it

Open them in the chord progression player to loop them and write over them.

Frequently asked questions

What notes are in the C♯dim chord?

C♯dim has 3 notes: C♯, E and G. It is a diminished chord: root, minor third and diminished fifth.

How do you play C♯dim on guitar?

The usual shape is x4565x, read from the low E string to the high E string. If you can't play barre chords yet, start with the easy version: xx(11)989.

What keys is C♯dim in?

C♯dim is in D major (vii°) and B minor (ii°).