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G7b5 Guitar Chord

A tense jazz chord with a tritone replacing the perfect fifth. Often serves as a tritone substitution in jazz progressions — replacing the classic dominant seventh chord.

Guitar

Strings 3–X–3–4–2–X

How to play the G7b5 chord on guitar

Read the string pattern 3–X–3–4–2–X from the low E string to the high E string. Numbers in the pattern are frets; numbers in the colored dots are left-hand fingers. X means a muted string and 0 means an open string.

6th string (low E) Fret 3 · middle finger
5th string (A) Muted
4th string (D) Fret 3 · ring finger
3rd string (G) Fret 4 · pinky
2nd string (B) Fret 2 · index finger
1st string (high E) Muted

Other names for the G7b5 chord

Other names: G 7th flat 5

Music theory name: seventh flat five chord

Common name: G 7b5 chord

Notes and intervals in the G7b5 chord

Note Interval
G Root
B Major 3rd
Db Diminished 5th
F Minor 7th

All variations

Open
3–X–3–4–2–X
Fret 5
X–X–5–6–6–7
Fret 9
X–10–9–10–0–9
Fret 10
X–10–11–10–12–X

More chords with G as the root

The same chord type in other keys