The G♭ 7♭5 chord is a four-note chord made up of G♭, B♭, D♭♭, and F♭. It is built from a root, major third, diminished fifth, and minor seventh.
Construction
G♭ 7♭5 = Root + Major 3rd + Diminished 5th + Minor 7th = G♭ · B♭ · D♭♭ · F♭
| Note | Interval | Degree |
|---|---|---|
| G♭ | Root | 1 |
| B♭ | Major 3rd | 3 |
| D♭♭ | Diminished 5th | ♭5 |
| F♭ | Minor 7th | ♭7 |
G♭ 7♭5 Inversions
| Position | Notes |
|---|---|
| Root Position | G♭ – B♭ – D♭♭ – F♭ |
| 1st Inversion | B♭ – D♭♭ – F♭ – G♭ |
| 2nd Inversion | D♭♭ – F♭ – G♭ – B♭ |
| 3rd Inversion | F♭ – G♭ – B♭ – D♭♭ |
Key Signature
A chord has no key signature of its own, but the G♭ 7♭5 is the tonic (I) chord of Gb Major, whose key signature has 6 flats (B♭, E♭, A♭, D♭, G♭, C♭).
B♭E♭A♭D♭G♭C♭
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.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of G♭ Major
These are the triads built on each degree of the G♭ major scale:
Same Notes, Other Names
The notes G♭ – B♭ – D♭♭ – F♭ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
G♭ 7♭5 — Frequently Asked Questions
What is the G♭ 7♭5 chord on piano?
The G♭ 7♭5 chord contains the notes G♭ – B♭ – D♭♭ – F♭. On piano, play these notes together to sound the chord.
What notes are in the Gb 7♭5 chord?
The Gb 7♭5 chord (Gb7♭5) contains 4 notes: Gb, Bb, C, E. Formula: R-M3-d5-m7.
How is Gb7♭5 used in music?
Gb7♭5 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Gb7♭5?
Gb7♭5 uses scale degrees 1-3-b5-b7, giving it its distinctive sound.