Chord · Altered Dom.
G7♭5♯9 — G Altered ♭5♯9
G7♭5♯9 is the G altered ♭5♯9 chord. It is built on the root G with major 3rd (B), diminished 5th (D♭), minor 7th (F) and augmented 9th (A♯) above it — the formula 1 3 ♭5 ♭7 ♯9, sounding the notes G B D♭ F A♯. On the piano it sits at G (octave 4) and above in the library's voicing; the same 5 notes in any octave are still G7♭5♯9.
- Root
- G
- Quality
- Altered ♭5♯9
- Formula
- 1 3 ♭5 ♭7 ♯9
- Notes
- G B D♭ F A♯
On the keyboard
The notes of G7♭5♯9
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | G | root | G4 |
| 3 | B | major 3rd | B4 |
| ♭5 | D♭ | diminished 5th | D♭5 |
| ♭7 | F | minor 7th | F5 |
| ♯9 | A♯ | augmented 9th | A♯5 |
Other altered dom. on G
Altered ♭5♯9 chords on every root
Part of the chord reference. See also the scales and the keys.