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