Finger Positions

Root Note D#

Name D# over A

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

Relative Minor Cm

Notes D#, G, A, C#

Aliases D#7b5

How to play the D#7b5/A Chord

The D#7b5/A 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 D# over A is built using the 1P, 3M, 5d, 7m intervals. In the key of D# Major, this chord functions as the I chord.

Common Progressions

In music composition, the D#7b5/A 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

Neopolitan Major Pentatonic Whole Tone Pentatonic Lydian Dominant Pentatonic Super Locrian Pentatonic Prometheus Neopolitan Prometheus Mystery #1 Whole Tone Locrian Major Altered Lydian Dominant Leading Whole Tone Lydian Minor Hungarian Major Oriental

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

Acoustic & Digital Analysis

Digital footprint of the D#7b5/A chord for MIDI programming and synthesizer sound design.

MIDI Numbers 63, 67, 69, 61

Frequencies (Hz)

311.1269837220809, 391.99543598174927, 440, 277.1826309768721