How do you play the G m9(#5)/B chord?

To play the G m9(#5)/B chord on piano, play the G m9(#5) chord (G, A#, D#, F and A) with B as the lowest bass note. Place the B 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 m9(#5)/B chord means a G m9(#5) chord with B in the bass.

G m9(#5)/B

Q: What notes are in the G m9(#5)/B chord?

The G m9(#5)/B chord uses the 5 notes of the G m9(#5) chord — G (Perfect unison), A# (Minor third), D# (Minor sixth), F (Minor seventh) and A (Major ninth) — with B played as the bass note in the lowest register.

The G m9(#5) chord consists of the G (Perfect unison), A# (Minor third), D# (Minor sixth), F (Minor seventh) and A (Major ninth) notes, with B as the bass note.

Piano keyboard showing the notes for a G m9(#5)/B chord

How to play the G m9(#5)/B chord

Play B as the lowest bass note in the left hand
Find G (Root) on the piano keyboard
Add A# (Minor third) — 3 semitones above G
Add D# (Minor sixth) — 8 semitones above G
Add F (Minor seventh) — 10 semitones above G
Add A (Major ninth) — 14 semitones above G
Press all 6 notes simultaneously to sound the G m9(#5)/B chord