Chord · 9ths
B9♭5 — B Dominant 9th ♭5
B9♭5 is the B dominant 9th ♭5 chord. It is built on the root B with major 3rd (D♯), diminished 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 B (octave 3) and above in the library's voicing; the same 5 notes in any octave are still B9♭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 B9♭5
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | B | root | B3 |
| 3 | D♯ | major 3rd | D♯4 |
| ♭5 | F | diminished 5th | F4 |
| ♭7 | A | minor 7th | A4 |
| 9 | C♯ | major 9th | C♯5 |
Other 9ths on B
Dominant 9th ♭5 chords on every root
Part of the chord reference. See also the scales and the keys.