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

To play the G# add11/C# chord on piano, play the G# add11 chord (G#, C, D# and C#) 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 G# add11/C# chord means a G# add11 chord with C# in the bass.

G# add11/C#

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

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

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

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

How to play the G# add11/C# chord

Play C# as the lowest bass note in the left hand
Find G# (Root) on the piano keyboard
Add C (Major third) — 4 semitones above G#
Add D# (Perfect fifth) — 7 semitones above G#
Add C# (Perfect eleventh) — 17 semitones above G#
Press all 5 notes simultaneously to sound the G# add11/C# chord

Inversions with same root

C# maj7(sus2)
C# maj9(sus2)

Related chords with different root

G# add11

Related slash chords

C m(#5)/C#
G# major/C#