Chord · 9ths
B♭9♯5 — B♭ Dominant 9th ♯5
B♭9♯5 is the B♭ dominant 9th ♯5 chord. It is built on the root B♭ with major 3rd (D), augmented 5th (F♯), minor 7th (A♭) and major 9th (C) above it — the formula 1 3 ♯5 ♭7 9, sounding the notes B♭ D F♯ A♭ C. On the piano it sits at Bb (octave 3) and above in the library's voicing; the same 5 notes in any octave are still B♭9♯5.
- Root
- B♭
- Quality
- Dominant 9th ♯5
- Formula
- 1 3 ♯5 ♭7 9
- Notes
- B♭ D F♯ A♭ C
On the keyboard
The notes of B♭9♯5
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | B♭ | root | B♭3 |
| 3 | D | major 3rd | D4 |
| ♯5 | F♯ | augmented 5th | F♯4 |
| ♭7 | A♭ | minor 7th | A♭4 |
| 9 | C | major 9th | C5 |
Other 9ths on B♭
Dominant 9th ♯5 chords on every root
Part of the chord reference. See also the scales and the keys.