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

To play the G 7(b9)(#9)/Db chord on piano, play the G 7(b9)(#9) chord (G, B, D, F, Ab and A#) with Db as the lowest bass note. Place the Db 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)/Db chord means a G 7(b9)(#9) chord with Db in the bass.

G 7(b9)(#9)/Db

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

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

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

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

Play Db 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 Ab (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)/Db chord