Chord · 11ths
B♭maj11 — B♭ Major 11th
B♭maj11 is the B♭ major 11th chord. It is built on the root B♭ with major 3rd (D), perfect 5th (F), major 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♭maj11.
- Root
- B♭
- Quality
- Major 11th
- Formula
- 1 3 5 7 9 11
- Notes
- B♭ D F A C E♭
On the keyboard
The notes of B♭maj11
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | B♭ | root | B♭3 |
| 3 | D | major 3rd | D4 |
| 5 | F | perfect 5th | F4 |
| 7 | A | major 7th | A4 |
| 9 | C | major 9th | C5 |
| 11 | E♭ | perfect 11th | E♭5 |
Other 11ths on B♭
Major 11th chords on every root
Part of the chord reference. See also the scales and the keys.