Gbm6/9(b11) Minor
The Gbm6/9(b11) chord is built from the notes Gb – Bbb – Db – Eb – Ab – Bb.
Piano sound loads on first tap.
Chord tones, one by one
GbRoot
Root
The fundamental note the chord is built on — Gb.
BbbThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
DbFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
EbExtension
Thirteenth (13)
A 13th — full, rich top extension.
AbExtension
Ninth (9)
A 9th — colorful extension a whole step above the octave.
BbExtension
Extension (16 st)
An upper extension 16 semitones above the root.
🎼 Related scales
🎹 Modal analysis
This chord implies the Bebop dorian scale; its characteristic note is the passing major 3rd (bebop).
🎸 Genres
Bebop jazz · Straight-ahead jazz