The G-sharp half-diminished seventh chord is a tense and harmonically intriguing chord consisting of the notes G♯, B, D, and F♯. By combining a diminished triad (G♯, B, D) with a minor seventh (F♯), this chord creates a sense of instability and unresolved tension, making it a powerful tool for transitioning between harmonies. Commonly used in jazz, classical, and contemporary music, the G-sharp half-diminished seventh chord adds depth, sophistication, and emotional complexity to progressions, allowing musicians to craft expressive and compelling musical moments.
Name: G-sharp half-diminished seventh chord
Symnonyms:: G-sharp half-diminished chord, G-sharp minor seventh flat five chord
Notes: G♯, B, D, F♯
Intervals: 1, ♭3, ♭5, ♭7
Chord symbol: G♯m7(♭5)
Alternative symbols: G♯ø, G♯ø7, G♯m7♭5, G♯–7(♭5), G♯mi7(♭5), G♯min7(♭5)
Type: Tetrad (four-note chord)
G-sharp half-diminished seventh chord on the Staff
G-sharp half-diminished seventh chord on Piano
G-sharp half-diminished seventh chord on Guitar
G-sharp half-diminished seventh chord on Ukulele

Rowan Ellis is a musician and educator with a passion for exploring the language of harmony and melody. With years of experience across classical, jazz, and contemporary styles, Rowan breaks down music theory into clear, practical insights. His goal is to make chords and scales less intimidating and more inspiring for every musician.
