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Ab9b5 Guitar Chord

A tense jazz chord with a tritone. Often serves as a tritone substitution for the dominant. The fifth is already altered, so the perfect fifth is not played — the remaining notes are all included.

Guitar

Strings 4–3–0–3–X–2

How to play the Ab9b5 chord on guitar

Read the string pattern 4–3–0–3–X–2 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 · little finger
5th string (A) Fret 3 · middle finger
4th string (D) Play open
3rd string (G) Fret 3 · ring finger
2nd string (B) Do not play
1st string (high E) Fret 2 · index finger

Notation for Ab9b5 chord

Other names: Ab 9th flat 5

Music theory name: ninth flat five chord

Common name: Ab 9b5 chord

Intervals and tones in Ab9b5 chord

Note Interval
Ab Root
C Major 3rd
D Diminished 5th
F# Minor 7th
B Major 9th

All Variations

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

More chords with Ab as the root

The same chord type in other keys