How do you play the B 7(b9)(#9)/D# chord?

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

B 7(b9)(#9)/D#

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

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

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

Piano keyboard showing the notes for a B 7(b9)(#9)/D# chord

How to play the B 7(b9)(#9)/D# chord

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

Related chords with different root

B 7(b9)(#9)

Related slash chords

D m7(add6)/D#
D 7(add6)/D#
B m7(b9)/D#
B m7(b9)(#9)/D#