How do you play the A sus4(b5)/D# chord?

To play the A sus4(b5)/D# chord on piano, play the A sus4(b5) chord (A, D 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 A sus4(b5)/D# chord means a A sus4(b5) chord with D# in the bass.

A sus4(b5)/D#

Q: What notes are in the A sus4(b5)/D# chord?

The A sus4(b5)/D# chord uses the 3 notes of the A sus4(b5) chord — A (Perfect unison), D (Perfect fourth) and D# (Diminished fifth) — with D# played as the bass note in the lowest register.

The A sus4(b5) chord consists of the A (Perfect unison), D (Perfect fourth) and D# (Diminished fifth) notes, with D# as the bass note.

Piano keyboard showing the notes for a A sus4(b5)/D# chord

How to play the A sus4(b5)/D# chord

Play D# as the lowest bass note in the left hand
Find A (Root) on the piano keyboard
Add D (Perfect fourth) — 5 semitones above A
Add D# (Diminished fifth) — 6 semitones above A
Press all 4 notes simultaneously to sound the A sus4(b5)/D# chord

Inversions with same root

D# maj7(b5)(sus)

Related chords with different root

A sus4(b5)

Related slash chords

D 5/D#