How do you play the G dim(no3)/C chord?

To play the G dim(no3)/C chord on piano, play the G dim(no3) chord (G 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 notes are in the G dim(no3)/C chord?

The G dim(no3)/C chord uses the 2 notes of the G dim(no3) chord — G (Perfect unison) and C# (Diminished fifth) — with C played as the bass note in the lowest register.

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 dim(no3)/C chord means a G dim(no3) chord with C in the bass.

G dim(no3)/C

The G dim(no3) chord consists of the G (Perfect unison) and C# (Diminished fifth) notes, with C as the bass note.

How to play the G dim(no3)/C chord

Play C as the lowest bass note in the left hand
Find G (Root) on the piano keyboard
Add C# (Diminished fifth) — 6 semitones above G
Press all 3 notes simultaneously to sound the G dim(no3)/C chord

Related chords with different root

C# maj7(b5)(sus)
G sus4(b5)

Related slash chords

C# dim(no3)/C