How do you play the F 9(#5)/D# chord?

To play the F 9(#5)/D# chord on piano, play the F 9(#5) chord (F, A, C#, D# and G) 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 F 9(#5)/D# chord means a F 9(#5) chord with D# in the bass.

F 9(#5)/D#

Q: What notes are in the F 9(#5)/D# chord?

The F 9(#5)/D# chord uses the 5 notes of the F 9(#5) chord — F (Perfect unison), A (Major third), C# (Minor sixth), D# (Minor seventh) and G (Major ninth) — with D# played as the bass note in the lowest register.

The F 9(#5) chord consists of the F (Perfect unison), A (Major third), C# (Minor sixth), D# (Minor seventh) and G (Major ninth) notes, with D# as the bass note.

Piano keyboard showing the notes for a F 9(#5)/D# chord

How to play the F 9(#5)/D# chord

Play D# as the lowest bass note in the left hand
Find F (Root) on the piano keyboard
Add A (Major third) — 4 semitones above F
Add C# (Minor sixth) — 8 semitones above F
Add D# (Minor seventh) — 10 semitones above F
Add G (Major ninth) — 14 semitones above F
Press all 6 notes simultaneously to sound the F 9(#5)/D# chord

Inversions with same root

D# 9(b5)

Related chords with different root

F 9(#5)

Related slash chords

A 7(#5)/D#