How do you play the F# m7(#9)/D# chord?

To play the F# m7(#9)/D# chord on piano, play the F# m7(#9) chord (F#, A, C#, E and A) 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# m7(#9)/D# chord means a F# m7(#9) chord with D# in the bass.

F# m7(#9)/D#

Q: What notes are in the F# m7(#9)/D# chord?

The F# m7(#9)/D# chord uses the 5 notes of the F# m7(#9) chord — F# (Perfect unison), A (Minor third), C# (Perfect fifth), E (Minor seventh) and A (Minor tenth) — with D# played as the bass note in the lowest register.

The F# m7(#9) chord consists of the F# (Perfect unison), A (Minor third), C# (Perfect fifth), E (Minor seventh) and A (Minor tenth) notes, with D# as the bass note.

Piano keyboard showing the notes for a F# m7(#9)/D# chord

How to play the F# m7(#9)/D# chord

Play D# as the lowest bass note in the left hand
Find F# (Root) on the piano keyboard
Add A (Minor third) — 3 semitones above F#
Add C# (Perfect fifth) — 7 semitones above F#
Add E (Minor seventh) — 10 semitones above F#
Add A (Minor tenth) — 15 semitones above F#
Press all 6 notes simultaneously to sound the F# m7(#9)/D# chord

Related slash chords

F# m7/D#
A 6/D#
A add13/D#