How do you play the G 7(b9)(#9)/A chord?

To play the G 7(b9)(#9)/A chord on piano, play the G 7(b9)(#9) chord (G, B, D, F, G# and A#) with A as the lowest bass note. Place the A note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What is a slash chord?

A slash chord (or compound chord) is written as Chord/Bass and specifies both a chord and a bass note. The note to the right of the slash is played as the lowest note. The G 7(b9)(#9)/A chord means a G 7(b9)(#9) chord with A in the bass.

G 7(b9)(#9)/A

Q: What notes are in the G 7(b9)(#9)/A chord?

The G 7(b9)(#9)/A chord uses the 6 notes of the G 7(b9)(#9) chord — G (Perfect unison), B (Major third), D (Perfect fifth), F (Minor seventh), G# (Minor ninth) and A# (Minor tenth) — with A played as the bass note in the lowest register.

The G 7(b9)(#9) chord consists of the G (Perfect unison), B (Major third), D (Perfect fifth), F (Minor seventh), G# (Minor ninth) and A# (Minor tenth) notes, with A as the bass note.

Piano keyboard showing the notes for a G 7(b9)(#9)/A chord

How to play the G 7(b9)(#9)/A chord

Play A as the lowest bass note in the left hand
Find G (Root) on the piano keyboard
Add B (Major third) — 4 semitones above G
Add D (Perfect fifth) — 7 semitones above G
Add F (Minor seventh) — 10 semitones above G
Add G# (Minor ninth) — 13 semitones above G
Add A# (Minor tenth) — 15 semitones above G
Press all 7 notes simultaneously to sound the G 7(b9)(#9)/A chord