G♯m7♭5
Half-dim · G♯ – B – D – F♯
- G♯R
- Bm3
- D♭5
- F♯♭7
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the G♯m7♭5 chord
The G♯m7♭5 chord (Half-dim) is built from G♯ (the root), B (a minor third), D (a diminished fifth) and F♯ (a minor seventh). Half-diminished chords are moody and jazzy — most often the ii chord in a minor key.