Gm7♭5 chord on piano

The G half-diminished 7 chord (Gm7♭5) is G, B♭, D♭ and F. Here it is on the keyboard, with the fingers to use, every inversion and how it fits into keys.

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half-diminished seventh chord

G, B♭, D♭ and F

Gm7♭5 chord on a piano keyboard: G, B♭, D♭ and F, starting from middle C upwardC4GC5FB♭D♭
Root
G
Minor third
B♭
Diminished fifth
D♭
Minor seventh
F

Formula

1 ♭3 ♭5 ♭7 (3, 6, 10 half steps above G)

Fingering in root position

Gm7♭5 root position: notes from the bottom up and fingering
NotesGB♭D♭F
Right hand1235
Left hand5321

Gm7♭5 inversions

Gm7♭5 has 3 inversions. Each one keeps the same notes and puts a different one at the bottom, so your hand can stay close to the chord before or after it.

Gm7♭5

Root position

Gm7♭5, root position, on the piano: G, B♭, D♭ and F from the bottom upC4GC5FB♭D♭
Gm7♭5 root position: notes from the bottom up and fingering
NotesGB♭D♭F
Right hand1235
Left hand5321

Gm7♭5/B♭

First inversion

Gm7♭5, first inversion, on the piano: B♭, D♭, F and G from the bottom upC4C5FGB♭D♭
Gm7♭5/B♭ first inversion: notes from the bottom up and fingering
NotesB♭D♭FG
Right hand1245
Left hand5321

Gm7♭5/D♭

Second inversion

Gm7♭5, second inversion, on the piano: D♭, F, G and B♭ from the bottom upC4FGC5D♭B♭
Gm7♭5/D♭ second inversion: notes from the bottom up and fingering
NotesD♭FGB♭
Right hand1235
Left hand5321

Gm7♭5/F

Third inversion

Gm7♭5, third inversion, on the piano: F, G, B♭ and D♭ from the bottom upC4FGC5B♭D♭
Gm7♭5/F third inversion: notes from the bottom up and fingering
NotesFGB♭D♭
Right hand1235
Left hand5421

Keys with Gm7♭5

Roman numerals give a chord's place in a key: capitals for major chords, small letters for minor, ° for diminished. Gm7♭5 appears as:

  • viiø7 in A♭ major
  • iiø7 in F minor

How Gm7♭5 is built

G is the root, B♭ the minor third, D♭ the diminished fifth and F the minor seventh.

A half-diminished seventh, written m7♭5 or ø7, is a diminished chord plus the minor seventh, 10 half steps above the root. It is the chord on the seventh note of a major key and on the second note of a minor key.

Every chord takes every other letter of the alphabet, so the letters of Gm7♭5 are G, B, D, F. That is why it is spelled G, B♭, D♭ and F.

Find Gm7♭5 yourself

Without looking at the diagrams, find the chord on the keyboard, then each inversion. Saying the notes out loud as you tap them helps them stick.

Step 1 of 4

Tap the notes of Gm7♭5, in any octave and any order.

CDEFGABCDEFGAB

Practice Gm7♭5 in real music

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Questions

What notes are in the Gm7♭5 chord?

Gm7♭5 has four notes: G, B♭, D♭ and F. G is the root, B♭ the minor third, D♭ the diminished fifth and F the minor seventh.

What fingers do you use for Gm7♭5 on piano?

In root position, play G, B♭, D♭ and F with right hand fingers 1, 2, 3 and 5 (thumb, index finger, middle finger and little finger) and left hand fingers 5, 3, 2 and 1. The fingers change a little in each inversion; every inversion on this page shows its own.

What are the inversions of Gm7♭5?

Gm7♭5 has 3 inversions, one for each note other than the root at the bottom. First inversion (Gm7♭5/B♭): B♭, D♭, F and G. Second inversion (Gm7♭5/D♭): D♭, F, G and B♭. Third inversion (Gm7♭5/F): F, G, B♭ and D♭.

What key is Gm7♭5 in?

Gm7♭5 appears as viiø7 in A♭ major and iiø7 in F minor.

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