B
G#
A
A#
B
C
F#
D#
E
F
F#
G
D
B
C
C#
D
D#
F#
F#
G
G#
A
A#
D
C#
D
D#
E
F
G#
G#
A
A#
B
C
4
5
6
7
8
G#m7b5
Half-diminished7Also known as: Abm7b5
About this chord
G#m7b5 (G# half‑diminished, aka G#ø7 or Abm7b5) has a shadowy, suspenseful color—melancholic yet refined, with a cool, noir tension. It’s a staple of jazz and blues harmony, fits film-score and classical modal writing, and suits fusion textures. Guitarists meet moderate difficulty: movable shapes, partial barre, and sophisticated jazz voicing to avoid muddiness. Commonly functions as iiø7 in minor keys, leading to V7 and resolving with satisfying pull. Can hint at Middle Eastern/Andalusian moods when used over Phrygian or melodic minor contexts.
Intervals
1♭3♭5♭7
Tuning
StandardE B G D A E
Position Frets 4 - 8
Tags
jazzbluesclassicaltheoryfusion