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A9b5 Piano 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.

Piano

Recommended voicing
Left hand A2 · G3 fingers 5–1
Right hand Eb4 · B4 · C#5 fingers 1–4–5

How to play the A9b5 chord on piano

Split the recommended voicing between the hands: play A2 and G3 with the left hand and Eb4, B4 and C#5 with the right. Suggested fingering is 5–1 on the left and 1–4–5 on the right (1 is the thumb).

Notation for A9b5 chord

Other names: A 9th flat 5

Music theory name: ninth flat five chord

Common name: A 9b5 chord

Intervals and tones in A9b5 chord

Note Interval
A Root
C# Major 3rd
Eb Diminished 5th
G Minor 7th
H Major 9th

More chords with A as the root

The same chord type in other keys