C# Half-diminished 7th Chord (C#m7b5) on Piano & Guitar

A piano keyboard reference for the C^♯ half-diminished 7th chord, abbreviated as C^♯m7b5 or C^♯ø, with the notes on piano and chord inversions. It's abbreviated as C^♯m7b5 because the half-diminished 7th chord is a minor 7th chord with a flat 5.

The C♯ half-diminished 7th chord has the notes C♯ E G B. The 3 inversions to the C♯ half-diminished 7th chord are E G B C♯, G B C♯ E and B C♯ E G.

The intervals of the C♯m7b5 chord are the root (C♯) , minor third (E) , diminished fifth (G) and minor seventh (B) .

🎸 You can also jump to guitar chord diagrams for the C♯m7b5 chord in common positions on the guitar fretboard. You'll find both open chords and/or barre chords.

C♯ half-diminished 7th Chord on Piano

⌨️ hint: use numbers 1 to 4 on a computer keyboard to trigger the C♯m7b5 chord and its inversions.

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🎸 C♯m7b5 Chord Guitar Diagrams

Below you'll find guitar chord diagrams for common chord positions of the C♯ half-diminished 7th chord, along with finger positions or note names.

show: Finger positions Note names

orientation: Vertical Horizontal

1 Index finger

2 Middle finger

3 Ring finger

4 Pinky

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