Fb7(b9) chord
The F-flat dominant minor ninth chord (abbreviated "Fb7(b9) chord") is a five-note chord consisting of the notes F♭, A♭, C♭, E♭♭, and G♭♭. The chord is formed by adding a major ninth to a F-flat dominant seventh chord.
In practice, the fifth (C♭) is often omitted from the Fb7(b9) chord because it's not always possible to play all notes simultaneously.
Name
F-flat dominant minor ninth chord
Notes
F♭ A♭ C♭ E♭♭ G♭♭
Intervals
1 3 5 ♭7 ♭9
Chord symbol
F♭7(b9)
Alternative symbol
F♭7b9
Type
pentad (five-note chord)