How do you play the G# add9/C chord?

To play the G# add9/C chord on piano, play the G# add9 chord (G#, C, D# and A#) 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# add9/C chord means a G# add9 chord with C in the bass.

G# add9/C

Q: What notes are in the G# add9/C chord?

The G# add9/C chord uses the 4 notes of the G# add9 chord — G# (Perfect unison), C (Major third), D# (Perfect fifth) and A# (Major ninth) — with C played as the bass note in the lowest register.

The G# add9 chord consists of the G# (Perfect unison), C (Major third), D# (Perfect fifth) and A# (Major ninth) notes, with C as the bass note.

Piano keyboard showing the notes for a G# add9/C chord

How to play the G# add9/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 A# (Major ninth) — 14 semitones above G#
Press all 5 notes simultaneously to sound the G# add9/C chord

Inversions with same root

C m7(#5)
C m7(alt)

Related chords with different root

G# add2
G# add9

Related slash chords

D# sus4/C
G# sus2/C
G# 5(add9)/C
A# 11(sus4)/C