Gb Minor 13th
Notes:Gb – A – Db – E – Ab – B – Eb
Formula:R-m3-P5-m7-M9-P11-M13
Intervals:P1-m3-P5-m7-M9-P11-M13
Scale Degrees:1-b3-5-b7-9-11-13
Introduction
The Gb Minor 13th piano chord (Gbm13) consists of the notes Gb, A, Db, E, Ab, B, Eb. It is a minor 11th chord with an added major 13th, giving it a dark and sophisticated character often used in jazz ballads and modal jazz. Formula: R-m3-P5-m7-M9-P11-M13 | Scale degrees: 1-b3-5-b7-9-11-13.
Enharmonic equivalent: G♭ is enharmonically equivalent to F♯. See F# Minor 13th.
Notes
Gb Minor 13th Inversions
| Position | Notes |
|---|---|
| Root Position | Gb4 – A4 – Db5 – E5 – B5 – Ab5 – Eb6 |
| 1st Inversion | A4 – Db5 – E5 – Gb5 – B5 – Ab5 – Eb6 |
| 2nd Inversion | Db5 – E5 – Gb5 – Ab5 – A5 – B5 – Eb6 |
Key Signature
The key of Gb Minor 13th has Key signature data not available.
Theory: Intervals
Formula: R-m3-P5-m7-M9-P11-M13
Intervals: P1-m3-P5-m7-M9-P11-M13
The Gb Minor 13th is built by stacking intervals from the root note. The formula R-m3-P5-m7-M9-P11-M13 describes the scale degrees used. The intervals P1-m3-P5-m7-M9-P11-M13 show the distance between each note in the chord.
Gb Minor 13th — Frequently Asked Questions
What notes are in the Gb Minor 13th chord?
Practical voicing: Gb–Bbb–Fb–Ab–Eb. Enharmonic equivalent of F#m13.
How does Gbm13 differ from Gb13?
Gbm13 has minor third. Gb13 has major third.
How is Gbm13 used in music?
Enharmonic of F#m13, the ii in E Major.
How does Gbm13 differ from Gbm11?
Adds the thirteenth for brightness.
What songs use Minor 13th chords?
Modal jazz, neo-soul.
Do I need to play all seven notes?
No — use practical voicing.
Practice Tips
- Gbm13 and F#m13 are enharmonic.
- Translate to F#m13 for easier reading.
- The thirteenth brightens the dark minor.
- Drop fifth and eleventh.
- Practice as ii: Gbm13 → Cb13 → Fbmaj13.
- Keyboard notes identical.