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C Diminished Chord on Piano

Cdim C E♭ G♭ Formula 1 b3 b5 3 notes

Open Cdim in the studio
Notes

What notes are in the C Diminished chord?

The C Diminished chord has 3 notes: C, E♭, G♭. Two minor thirds stacked: 3 half steps, then 3 more. The diminished fifth (6 half steps from C) gives it its tension.

NoteInterval from the rootHalf steps
CRoot0
E♭Minor 3rd3
G♭Diminished 5th6
Inversions and fingering

Every way to play C Diminished

The same notes in a different order. The lowest note changes the name after the slash; the fingering below is the usual one - right hand from the lowest key up, left hand from the lowest key up too.

Root position Cdim

C Diminished chord, root position: C E♭ G♭CE♭G♭

C – E♭ – G♭

Right hand 1-3-5Left hand 5-3-1

1st inversion Cdim/E♭

C Diminished chord, 1st inversion: E♭ G♭ CCE♭G♭

E♭ – G♭ – C

Right hand 1-2-5Left hand 5-3-1

2nd inversion Cdim/G♭

C Diminished chord, 2nd inversion: G♭ C E♭CG♭E♭

G♭ – C – E♭

Right hand 1-3-5Left hand 5-2-1

Where it lives

Keys and scales with C Diminished

Every key where Cdim is one of the seven chords, with its Roman numeral, and the scales whose notes include all of it - the ones to improvise over it.

In these keys

Scales that contain all its notes

Questions

Frequently asked

What notes are in the C Diminished chord?

The C Diminished chord (Cdim) is made of C, E♭, G♭. Its formula is 1 b3 b5 - the root, then the intervals of a diminished chord.

How do you play Cdim on the piano?

Put your right thumb on C and play the other notes with fingers 1-3-5. With the left hand, use fingers 5-3-1 from the lowest key up.

What are the inversions of Cdim?

root position Cdim (C E♭ G♭); 1st inversion Cdim/E♭ (E♭ G♭ C); 2nd inversion Cdim/G♭ (G♭ C E♭).

Play it for real

Hold Cdim and build a progression on it

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