Finger Positions

Root Note C

Name C half-diminished over D

Intervals 1P-3m-5d-7m

Relative Minor Am

Notes D, C, Eb, Gb, Bb

Aliases Cm7b5, Cø, C-7b5, Ch7, Ch

How to play the Cm7b5/D Chord

The Cm7b5/D is a fundamental dominant 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 half-diminished over D is built using the 1P, 3m, 5d, 7m intervals. In the key of C Major, this chord functions as the I chord.

Common Progressions

In music composition, the Cm7b5/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 Locrian Locrian Pentatonic Super Locrian Pentatonic Altered Locrian #2 Locrian 6 Dorian #4 Hungarian Major Flamenco Bebop Locrian Half-Whole Diminished Composite Blues Messiaen's Mode #3 Chromatic

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

Acoustic & Digital Analysis

Digital footprint of the Cm7b5/D chord for MIDI programming and synthesizer sound design.

MIDI Numbers 62, 60, 63, 66, 70

Frequencies (Hz)

293.6647679174076, 261.6255653005986, 311.1269837220809, 369.9944227116344, 466.1637615180899