How do you play the B addb9/D# chord?

To play the B addb9/D# chord on piano, play the B addb9 chord (B, D#, F# and C) 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 addb9/D# chord means a B addb9 chord with D# in the bass.

B addb9/D#

Q: What notes are in the B addb9/D# chord?

The B addb9/D# chord uses the 4 notes of the B addb9 chord — B (Perfect unison), D# (Major third), F# (Perfect fifth) and C (Minor ninth) — with D# played as the bass note in the lowest register.

The B addb9 chord consists of the B (Perfect unison), D# (Major third), F# (Perfect fifth) and C (Minor ninth) notes, with D# as the bass note.

Piano keyboard showing the notes for a B addb9/D# chord

How to play the B addb9/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 C (Minor ninth) — 13 semitones above B
Press all 5 notes simultaneously to sound the B addb9/D# chord

Related chords with different root

C m(maj7)(b5)
B addb9

Related slash chords

C maj7(b5)(sus)/D#
F# sus4(b5)/D#