Finger Positions

Root Note C

Name C diminished over D

Intervals 1P-3m-5d

Relative Minor Am

Notes D, C, Eb, Gb

Aliases Cdim, C°, Co

How to play the Cdim/D Chord

The Cdim/D is a fundamental diminished chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the C diminished over D is built using the 1P, 3m, 5d intervals. In the key of C Major, this chord functions as the I chord.

Common Progressions

In music composition, the Cdim/D chord is often used to create tension or resolution.

I-V-vi-IV

C → G → Am → F

vi-IV-I-V

Am → F → C → G

The Diatonic Family

Understanding the "family" of chords that belong to C helps with transposition and ear training.

Triads

C Dm Em F G Am Bdim

7ths

Cmaj7 Dm7 Em7 Fmaj7 G7 Am7 Bm7b5

Scale Compatibility

View All Scales

Minor Blues Diminished Locrian Locrian Pentatonic Super Locrian Pentatonic Altered Locrian #2 Ultralocrian Locrian 6 Dorian #4 Lydian Diminished Hungarian Minor Hungarian Major Flamenco Todi Raga

* 15 scales found containing the notes D, C, Eb, Gb.

Acoustic & Digital Analysis

Digital footprint of the Cdim/D chord for MIDI programming and synthesizer sound design.

MIDI Numbers 62, 60, 63, 66

Frequencies (Hz)

293.6647679174076, 261.6255653005986, 311.1269837220809, 369.9944227116344