How do you play the F 7(b9)/C# chord?

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

F 7(b9)/C#

Q: What notes are in the F 7(b9)/C# chord?

The F 7(b9)/C# chord uses the 5 notes of the F 7(b9) chord — F (Perfect unison), A (Major third), C (Perfect fifth), D# (Minor seventh) and F# (Minor ninth) — with C# played as the bass note in the lowest register.

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

Piano keyboard showing the notes for a F 7(b9)/C# chord

How to play the F 7(b9)/C# chord

Play C# 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 (Perfect fifth) — 7 semitones above F
Add D# (Minor seventh) — 10 semitones above F
Add F# (Minor ninth) — 13 semitones above F
Press all 6 notes simultaneously to sound the F 7(b9)/C# chord