How do you play the F 9(#11)/C chord?

To play the F 9(#11)/C chord on piano, play the F 9(#11) chord (F, A, C, D#, G and B) 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 9(#11)/C chord means a F 9(#11) chord with C in the bass.

F 9(#11)/C

Q: What notes are in the F 9(#11)/C chord?

The F 9(#11)/C chord uses the 6 notes of the F 9(#11) chord — F (Perfect unison), A (Major third), C (Perfect fifth), D# (Minor seventh), G (Major ninth) and B (Augmented eleventh) — with C played as the bass note in the lowest register.

The F 9(#11) chord consists of the F (Perfect unison), A (Major third), C (Perfect fifth), D# (Minor seventh), G (Major ninth) and B (Augmented eleventh) notes, with C as the bass note.

Piano keyboard showing the notes for a F 9(#11)/C chord

How to play the F 9(#11)/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 G (Major ninth) — 14 semitones above F
Add B (Augmented eleventh) — 18 semitones above F
Press all 7 notes simultaneously to sound the F 9(#11)/C chord

Related chords with different root

F 9(#11)

Related slash chords

F 9(b5)/C
G 9(#5)/C