Chord · Altered Dom.
F7♭5♭9 — F Altered ♭5♭9
F7♭5♭9 is the F altered ♭5♭9 chord. It is built on the root F with major 3rd (A), diminished 5th (C♭), minor 7th (E♭) and minor 9th (G♭) above it — the formula 1 3 ♭5 ♭7 ♭9, sounding the notes F A C♭ E♭ G♭. On the piano it sits at F (octave 4) and above in the library's voicing; the same 5 notes in any octave are still F7♭5♭9.
- Root
- F
- Quality
- Altered ♭5♭9
- Formula
- 1 3 ♭5 ♭7 ♭9
- Notes
- F A C♭ E♭ G♭
On the keyboard
The notes of F7♭5♭9
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | F | root | F4 |
| 3 | A | major 3rd | A4 |
| ♭5 | C♭ | diminished 5th | C♭5 |
| ♭7 | E♭ | minor 7th | E♭5 |
| ♭9 | G♭ | minor 9th | G♭5 |
Other altered dom. on F
Altered ♭5♭9 chords on every root
Part of the chord reference. See also the scales and the keys.