Finger Positions

Root Note D#

Name D# over C#

Intervals 1P-3M-5P-6M-11A

Relative Minor Cm

Notes C#, D#, G, A#, C, A

Aliases D#M6#11, D#M6b5, D#6#11, D#6b5

How to play the D#6b5/C# Chord

The D#6b5/C# is a fundamental major 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 D# over C# is built using the 1P, 3M, 5P, 6M, 11A intervals. In the key of D# Major, this chord functions as the I chord.

Common Progressions

In music composition, the D#6b5/C# chord is often used to create tension or resolution.

I-V-vi-IV

D# → A# → Cm → G#

vi-IV-I-V

Cm → G# → D# → A#

The Diatonic Family

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

Triads

D# Fm Gm G# A# Cm Ddim

7ths

D#maj7 Fm7 Gm7 G#maj7 A#7 Cm7 Dm7b5

Scale Compatibility

View All Scales

Lydian Lydian Dominant Hungarian Major Lydian #9 Ichikosucho Half-Whole Diminished Composite Blues Chromatic

* 8 scales found containing the notes C#, D#, G, A#, C, A.

Acoustic & Digital Analysis

Digital footprint of the D#6b5/C# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 61, 63, 67, 70, 60, 69

Frequencies (Hz)

277.1826309768721, 311.1269837220809, 391.99543598174927, 466.1637615180899, 261.6255653005986, 440