Guitar, piano and ukulele chords

Cdim chord (C diminished)

The Cdim chord (C 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 rarely stays: it links two chords and it is the vii° chord of a major key.

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.

3fr ××
Usual shape
x3454x
7fr ××
Easy version
xx(10)878

Notes in the chord

NoteInterval
CRoot
E♭Minor third
G♭Diminished fifth

Inversions

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

On piano

The highlighted keys make the chord in root position.

On ukulele

2fr
Usual shape
5323
5fr
Higher up the neck · fret 5
5686

Frequently asked questions

What notes are in the Cdim chord?

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

How do you play Cdim on guitar?

The usual shape is x3454x, 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(10)878.

What keys is Cdim in?

Cdim is in D flat major (vii°) and B flat minor (ii°).

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