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Ab7b5 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 4–X–4–5–3–X

How to play the Ab7b5 chord on guitar

Read the string pattern 4–X–4–5–3–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 4 · middle finger
5th string (A) Do not play
4th string (D) Fret 4 · ring finger
3rd string (G) Fret 5 · little finger
2nd string (B) Fret 3 · index finger
1st string (high E) Do not play

Notation for Ab7b5 chord

Other names: Ab 7th flat 5

Music theory name: seventh flat five chord

Common name: Ab 7b5 chord

Intervals and tones in Ab7b5 chord

Note Interval
Ab Root
C Major 3rd
D Diminished 5th
F# Minor 7th

All Variations

Fret 3
4–X–4–5–3–X
Fret 6
X–X–6–7–7–8
Fret 9
X–9–10–11–9–10
Fret 11
X–11–12–11–13–X

More chords with Ab as the root

The same chord type in other keys