Skip to content

G♯ Diminished 7th

Also Known As
What are Enharmonics?G♯ / A♭ Equivalent

Hear the G♯ Diminished 7th chord played for you.

G♯°7
G♯ – B – D – F
Formula:R-m3-d5-d7
Intervals:P1-m3-d5-d7
Scale Degrees:1-b3-b5-bb7

Introduction

G♯ Diminished 7th on the piano — Notes: G♯ – B – D – F
G♯ Diminished 7th chord on the piano

The G♯ Diminished 7th chord is a four-note chord made up of G♯, B, D, and F. It is built from a root, minor third, diminished fifth, and diminished seventh.

The G# Diminished 7th piano chord (G#dim7) consists of the notes G#, B, D, F. It is built by stacking three minor thirds, creating a fully symmetrical 4-note chord, giving it a extremely tense and dramatic character, fully symmetrical and harmonically versatile. Formula: R-m3-d5-d7 | Scale degrees: 1-b3-b5-bb7.

Notes

Notes:G♯ – B – D – F

G♯ Diminished 7th Inversions

PositionNotes
Root PositionG# – B – D – F
1st InversionB – D – F – G#
2nd InversionD – F – G# – B
3rd InversionG# – B – D – F

Key Signature

The key of G# Diminished 7th (enharmonically equivalent to Ab Diminished 7th) has 4 flats.

B♭E♭A♭D♭

Order of flats

Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.

BEADGCF

Mnemonic: Battle Ends And Down Goes Charles’ Father

Chords in the Key of G# Major

These are the diatonic triads built on each degree of the G# major scale:

C
D
E
F
G
A
B
C
D
E
F
G
A
B
IG♯ Major (major)
DegreeNumeralChordQuality
1IG# MajorMajor
2iiA# MinorMinor
3iiiC MinorMinor
4IVC# MajorMajor
5VD# MajorMajor
6viF MinorMinor
7vii°G DiminishedDiminished

Theory: Intervals

Formula: R-m3-d5-d7
Intervals: P1-m3-d5-d7

The G♯ Diminished 7th is built by stacking intervals from the root note. The formula R-m3-d5-d7 describes the scale degrees used. The intervals P1-m3-d5-d7 show the distance between each note in the chord.

G♯ Diminished 7th — Frequently Asked Questions

What notes are in the G# Diminished 7th chord?
G# Diminished 7th is built from the G# root. Check the interactive keyboard above for exact notes and fingering.
How is the G# Diminished 7th chord used in music?
G# Diminished 7th appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Diminished 7th).
What is the fingering for G# Diminished 7th?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of G# Diminished 7th?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.

Practice Tips

  • Symmetrical — only 3 unique dim7 chords.
  • Pivot chord for modulation.
  • Maximum dramatic tension.
  • Classical cadence chord.
  • Compare with G#m7b5.
  • Film scoring suspense.

Related Tools

Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.