Chord Information
Learn how to play G#m7b5 on piano
Notes in Chord
Intervals
Inversion
Notes (bottom to top): G#4 - B4 - D5 - F#5
Right Hand Fingering
3=middle, 4=ring, 5=pinky
Interactive Piano
Click the highlighted keys to play the G#m7b5 chord
About the G#m7b5 Chord
The G#m7b5 chord (G#ø7) provides half-diminished color in sharp-key contexts. Built from G#-B-D-F#, this chord functions as ii in F# minor. Its enharmonic equivalent Abm7b5 appears in flat-key contexts.
What makes G#m7b5 useful is its position in sharp-key minor progressions. In F# minor, G#m7b5-C#7-F#m provides the minor ii-V-i cadence.
On piano, G#m7b5 combines B, D, and F# (white and black) with G# (black). The chord voice-leads naturally to C#7.
Music Theory & Usage
G#m7b5 functions as ii in F# minor, where it leads G#m7b5-C#7-F#m. In B major, it can serve as vi with altered 5th. The chord appears in jazz standards using F# minor.
The half-diminished sound provides sophisticated minor harmony in sharp-key contexts.
Famous Songs Using G#m7b5
Hear how professional musicians use the G#m7b5 chord in these well-known songs:
“You and the Night and the Music”
by Arthur Schwartz
Uses half-diminished in minor sections
“I Remember Clifford”
by Benny Golson
Features m7b5 voicings
“Along Came Betty”
by Benny Golson
Contains half-diminished chords
“Whisper Not”
by Benny Golson
Uses m7b5 for sophistication
How to Play G#m7b5 on Piano
- Place your thumb on G#.
- Place your index finger on B.
- Place your middle finger on D.
- Place your pinky finger on F#.
- Press all keys simultaneously to hear the G#m7b5 chord.
Recommended fingering: 1-2-3-5 (right hand)
G#m7b5 Chord Inversions
The G#m7b5 chord can be played in different inversions:
Root Position
G# - B - D - F# (bass note: G#)
First Inversion
B - D - F# - G# (bass note: B)
Second Inversion
D - F# - G# - B (bass note: D)
Common Chord Progressions Using G#m7b5
ii-V-I Jazz Progression
Common chord progression
I-vi-ii-V Progression
Common chord progression
Practice Tips for G#m7b5
- Start slowly and focus on pressing all keys simultaneously for a clean sound.
- Practice transitioning between G#m7b5 and other common chords to build muscle memory.
- Listen carefully to how the seventh interval creates tension and color in the chord.
- Practice resolving this chord to its natural target chords in progressions.
Frequently Asked Questions about G#m7b5
What notes are in G#m7b5?
G#m7b5 contains G# (root), B (minor 3rd), D (diminished 5th), and F# (minor 7th).
Is G#m7b5 the same as Abm7b5?
Yes, enharmonically identical. G#m7b5 appears in sharp keys (F# minor); Abm7b5 in flat keys (Gb minor). Same sound, different notation.
What key is G#m7b5 the ii chord of?
G#m7b5 is the ii chord in F# minor. The progression G#m7b5-C#7-F#m is the minor ii-V-i in F#.
Which spelling should I use?
Use G#m7b5 in sharp keys (F# minor, A major) and Abm7b5 in flat keys (Gb minor, Bbb major). Match the key signature for readability.