G#7(b9) chord
The G-sharp dominant minor ninth chord (abbreviated "G#7(b9) chord") is a five-note chord consisting of the notes G♯, B♯, D♯, F♯, and A. The chord is formed by adding a major ninth to a G-sharp dominant seventh chord.
In practice, the fifth (D♯) is often omitted from the G#7(b9) chord because it's not always possible to play all notes simultaneously.
Name
G-sharp dominant minor ninth chord
Notes
G♯ B♯ D♯ F♯ A
Intervals
1 3 5 ♭7 ♭9
Chord symbol
G♯7(b9)
Alternative symbol
G♯7b9
Type
pentad (five-note chord)