How do you play the F# add11/C# chord?

To play the F# add11/C# chord on piano, play the F# add11 chord (F#, A#, C# 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# add11/C# chord means a F# add11 chord with C# in the bass.

F# add11/C#

Q: What notes are in the F# add11/C# chord?

The F# add11/C# chord uses the 4 notes of the F# add11 chord — F# (Perfect unison), A# (Major third), C# (Perfect fifth) and B (Perfect eleventh) — with C# played as the bass note in the lowest register.

The F# add11 chord consists of the F# (Perfect unison), A# (Major third), C# (Perfect fifth) and B (Perfect eleventh) notes, with C# as the bass note.

Piano keyboard showing the notes for a F# add11/C# chord

How to play the F# add11/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 B (Perfect eleventh) — 17 semitones above F#
Press all 5 notes simultaneously to sound the F# add11/C# chord

Related chords with different root

F# add11
B maj7(sus2)
B maj9(sus2)

Related slash chords

B maj7(sus)/C#