Finger Positions

Root Note G

Name G over B

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

Relative Minor Em

Notes G, B, Db, F, A

Aliases G9b5

How to play the G9b5/B Chord

The G9b5/B 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 over B is built using the 1P, 3M, 5d, 7m, 9M intervals. In the key of G Major, this chord functions as the I chord.

Common Progressions

In music composition, the G9b5/B 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

Prometheus Whole Tone Locrian Major Lydian Dominant Leading Whole Tone Lydian Minor Messiaen's Mode #6 Composite Blues Messiaen's Mode #3 Chromatic

* 10 scales found containing the notes G, B, Db, F, A.

Acoustic & Digital Analysis

Digital footprint of the G9b5/B chord for MIDI programming and synthesizer sound design.

MIDI Numbers 67, 71, 61, 65, 69

Frequencies (Hz)

391.99543598174927, 493.8833012561241, 277.1826309768721, 349.2282314330039, 440