Finger Positions

Root Note G

Name G major ninth over D#

Intervals 1P-3M-5P-7M-9M

Relative Minor Em

Notes D#, G, B, D, F#, A

Aliases Gmaj9, GΔ9, G^9

How to play the Gmaj9/D# Chord

The Gmaj9/D# 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 G major ninth over D# is built using the 1P, 3M, 5P, 7M, 9M intervals. In the key of G Major, this chord functions as the I chord.

Common Progressions

In music composition, the Gmaj9/D# chord is often used to create tension or resolution.

I-V-vi-IV

G → D → Em → C

vi-IV-I-V

Em → C → G → D

The Diatonic Family

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

Triads

G Am Bm C D Em F#dim

7ths

Gmaj7 Am7 Bm7 Cmaj7 D7 Em7 F#m7b5

Scale Compatibility

View All Scales

Major Bebop Lydian Harmonic Major Bebop Major Ichikosucho Messiaen's Mode #3 Chromatic

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

Acoustic & Digital Analysis

Digital footprint of the Gmaj9/D# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 63, 67, 71, 62, 66, 69

Frequencies (Hz)

311.1269837220809, 391.99543598174927, 493.8833012561241, 293.6647679174076, 369.9944227116344, 440