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Cdim7 chord

C diminished 7th

C
Eb
Gb
A
C5

Want it in context? Open Cdim7 on the full piano.

Notes

  • C
    R
  • Eb
    b3
  • Gb
    b5
  • A
    6

Formula: R – b3 – b5 – 6

Cdim7 inversions

The same notes, with a different note in the bass.

Root position Cdim7

C
Eb
Gb
A
C5

1st inversion Cdim7/Eb

C4
Eb
Gb
A
C

2nd inversion Cdim7/Gb

C4
Gb
A
C
Eb

3rd inversion Cdim7/A

C4
A
C
Eb
Gb

FAQ

What notes are in the Cdim7 chord?

The C diminished 7th chord (Cdim7) has 4 notes: C, Eb, Gb and A.

How do you play Cdim7 on the piano?

Put your right hand on C, Eb, Gb and A, starting from C. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).

What is the formula of a diminished 7th chord?

R – b3 – b5 – 6 (in semitones from the root: 0, 3, 6, 9).