Chord Information
Learn how to play Gm7b5 on piano
Notes in Chord
Intervals
Inversion
Notes (bottom to top): G4 - Bb4 - Db5 - F5
Right Hand Fingering
3=middle, 4=ring, 5=pinky
Interactive Piano
Click the highlighted keys to play the Gm7b5 chord
About the Gm7b5 Chord
The Gm7b5 chord (Gø7) provides essential half-diminished color in one of jazz's most important contexts. Built from G-Bb-Db-F, this chord functions as ii in F minor—a key used in many dramatic jazz standards. Its dark sophistication creates powerful minor-key progressions.
What makes Gm7b5 particularly important is its role in F minor harmony. F minor is common in jazz ballads with serious or melancholic themes, and Gm7b5-C7-Fm is fundamental vocabulary.
On piano, Gm7b5 combines G and F (white) with Bb and Db (black). The chord's dark color pushes toward C7 resolution.
Music Theory & Usage
Gm7b5 functions as ii in F minor, where it leads Gm7b5-C7-Fm. In Ab major, it serves as vii. The chord appears throughout jazz standards requiring F minor harmony.
The half-diminished sound provides sophisticated minor-key color essential for ballads and dramatic pieces.
Famous Songs Using Gm7b5
Hear how professional musicians use the Gm7b5 chord in these well-known songs:
“Summertime”
by George Gershwin
Uses Gm7b5 in F minor sections
“My Funny Valentine”
by Richard Rodgers
Features half-diminished in its progression
“I Loves You, Porgy”
by George Gershwin
Contains Gm7b5 voicings
“Spring Is Here”
by Richard Rodgers
Uses m7b5 for melancholy
How to Play Gm7b5 on Piano
- Place your thumb on G.
- Place your index finger on Bb.
- Place your middle finger on Db.
- Place your pinky finger on F.
- Press all keys simultaneously to hear the Gm7b5 chord.
Recommended fingering: 1-2-3-5 (right hand)
Gm7b5 Chord Inversions
The Gm7b5 chord can be played in different inversions:
Root Position
G - Bb - Db - F (bass note: G)
First Inversion
Bb - Db - F - G (bass note: Bb)
Second Inversion
Db - F - G - Bb (bass note: Db)
Common Chord Progressions Using Gm7b5
ii-V-I Jazz Progression
Common chord progression
I-vi-ii-V Progression
Common chord progression
Practice Tips for Gm7b5
- Start slowly and focus on pressing all keys simultaneously for a clean sound.
- Practice transitioning between Gm7b5 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 Gm7b5
What notes are in Gm7b5?
Gm7b5 contains G (root), Bb (minor 3rd), Db (diminished 5th), and F (minor 7th). G and F are white; Bb and Db are black.
What key is Gm7b5 the ii chord of?
Gm7b5 is the ii chord in F minor. The progression Gm7b5-C7-Fm is the minor ii-V-i in F.
How does Gm7b5 differ from Gm7?
Gm7b5 (G-Bb-Db-F) has diminished 5th (Db)—dark, unstable. Gm7 (G-Bb-D-F) has perfect 5th (D)—smooth, stable. Gm7b5 is for minor ii-V-i; Gm7 is for major II-V-I.
What are good Gm7b5 voicings?
Root position (G-Bb-Db-F) is clear. Shell voicing (G-Bb-F with Db optional) works well. The chord voice-leads smoothly to C7 with Db moving to C.