Cdim chord

The Cdim chord (C diminished) on a piano: the notes, every inversion and the keys it belongs to. Tap play to hear it, and download it as MIDI.

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C1Ebb3Gbb5

About the diminished chord

The root, a minor third and a diminished fifth. Tense and unstable, mostly used as a passing chord.

Formula: 1 b3 b5. Used in: Film music, classical, jazz, and as a step between two chords.

Cdim inversions

Tap an inversion to hear it. Inversions keep the same notes in a different order, which lets chords move smoothly from one to the next.

Keys with Cdim

Cdim is the VII chord in Db major and II chord in Bb minor.

It also appears in Eb Dorian (VI), F Phrygian (V), Gb Lydian (IV), Ab Mixolydian (III).

Build a progression around it in the chord progression generator.

More C chords

Other diminished chords

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Questions

What notes are in a Cdim chord?

C, Eb, Gb.

What is the formula of a diminished chord?

1 b3 b5. The root, a minor third and a diminished fifth. Tense and unstable, mostly used as a passing chord.

What key is Cdim in?

Cdim is a chord in Db major (VII), Bb minor (II).

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