Chord · 11ths
B♭m11♭5 — B♭ Minor 11th ♭5
B♭m11♭5 is the B♭ minor 11th ♭5 chord. It is built on the root B♭ with minor 3rd (D♭), diminished 5th (F♭), minor 7th (A♭), major 9th (C) and perfect 11th (E♭) above it — the formula 1 ♭3 ♭5 ♭7 9 11, sounding the notes B♭ D♭ F♭ A♭ C E♭. On the piano it sits at Bb (octave 3) and above in the library's voicing; the same 6 notes in any octave are still B♭m11♭5.
- Root
- B♭
- Quality
- Minor 11th ♭5
- Formula
- 1 ♭3 ♭5 ♭7 9 11
- Notes
- B♭ D♭ F♭ A♭ C E♭
On the keyboard
The notes of B♭m11♭5
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | B♭ | root | B♭3 |
| ♭3 | D♭ | minor 3rd | D♭4 |
| ♭5 | F♭ | diminished 5th | F♭4 |
| ♭7 | A♭ | minor 7th | A♭4 |
| 9 | C | major 9th | C5 |
| 11 | E♭ | perfect 11th | E♭5 |
Other 11ths on B♭
Minor 11th ♭5 chords on every root
Part of the chord reference. See also the scales and the keys.