Chord · Altered Dom.
B13♭9 — B 13th ♭9
B13♭9 is the B 13th ♭9 chord. It is built on the root B with major 3rd (D♯), perfect 5th (F♯), minor 7th (A), minor 9th (C) and major 13th (G♯) above it — the formula 1 3 5 ♭7 ♭9 13, sounding the notes B D♯ F♯ A C G♯. On the piano it sits at B (octave 3) and above in the library's voicing; the same 6 notes in any octave are still B13♭9.
- Root
- B
- Quality
- 13th ♭9
- Formula
- 1 3 5 ♭7 ♭9 13
- Notes
- B D♯ F♯ A C G♯
On the keyboard
The notes of B13♭9
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | B | root | B3 |
| 3 | D♯ | major 3rd | D♯4 |
| 5 | F♯ | perfect 5th | F♯4 |
| ♭7 | A | minor 7th | A4 |
| ♭9 | C | minor 9th | C5 |
| 13 | G♯ | major 13th | G♯5 |
Other altered dom. on B
13th ♭9 chords on every root
Part of the chord reference. See also the scales and the keys.