Finger Positions

Root Note G

Name G sixth added ninth over C

Intervals 1P-3M-5P-6M-9M

Relative Minor Em

Notes C, G, B, D, E, A

Aliases G6add9, G6/9, G69, GM69

How to play the G6add9/C Chord

The G6add9/C 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 G sixth added ninth over C is built using the 1P, 3M, 5P, 6M, 9M intervals. In the key of G Major, this chord functions as the I chord.

Common Progressions

In music composition, the G6add9/C 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 Major Blues Bebop Lydian Mixolydian Lydian Dominant Bebop Minor Bebop Major Ichikosucho Composite Blues Chromatic

* 11 scales found containing the notes C, G, B, D, E, A.

Acoustic & Digital Analysis

Digital footprint of the G6add9/C chord for MIDI programming and synthesizer sound design.

MIDI Numbers 60, 67, 71, 62, 64, 69

Frequencies (Hz)

261.6255653005986, 391.99543598174927, 493.8833012561241, 293.6647679174076, 329.6275569128699, 440