B♭m11
Bb Minor 11th — the full minor stack through the eleventh — voiced in fourths it becomes the modern quartal sound.
The keys
B♭ – D♭ – F – A♭ – C – E♭
What's inside B♭m11
| Note | Interval from root | Degree |
|---|---|---|
| B♭ | Root | 1 |
| D♭ | Minor 3rd | b3 |
| F | Perfect 5th | 5 |
| A♭ | Minor 7th | b7 |
| C | Major 9th | 9 |
| E♭ | Perfect 11th | 11 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | B♭2 – A♭3 |
| Right (colour) | D♭5 – C6 – E♭6 |
Where B♭m11 lives
As the i chord
B♭m11 → G♭ → A♭ → B♭m11
The minor home base: i–VI–VII pulls away and lands back home.
In a ii–V–i
Cm7♭5 → F7 → B♭m11
The minor two-five resolving into this chord as the destination.
Put B♭m11 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →