How do you play the G maj7(b5)/C# chord?

To play the G maj7(b5)/C# chord on piano, play the G maj7(b5) chord (G, B, C# and F#) 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 maj7(b5)/C# chord means a G maj7(b5) chord with C# in the bass.

G maj7(b5)/C#

Q: What notes are in the G maj7(b5)/C# chord?

The G maj7(b5)/C# chord uses the 4 notes of the G maj7(b5) chord — G (Perfect unison), B (Major third), C# (Diminished fifth) and F# (Major seventh) — with C# played as the bass note in the lowest register.

The G maj7(b5) chord consists of the G (Perfect unison), B (Major third), C# (Diminished fifth) and F# (Major seventh) notes, with C# as the bass note.

Piano keyboard showing the notes for a G maj7(b5)/C# chord

How to play the G maj7(b5)/C# chord

Play C# as the lowest bass note in the left hand
Find G (Root) on the piano keyboard
Add B (Major third) — 4 semitones above G
Add C# (Diminished fifth) — 6 semitones above G
Add F# (Major seventh) — 11 semitones above G
Press all 5 notes simultaneously to sound the G maj7(b5)/C# chord

Inversions with same root

C# 11(b5)(sus4)

Related chords with different root

G maj7(b5)