Cb7(#9) chord
The C-flat dominant seventh sharp ninth chord (abbreviated "Cb7(#9) chord") is a five-note chord consisting of the notes C♭, E♭, G♭, B♭♭, and D. The chord is formed by adding an augmented ninth to a C-flat dominant seventh chord.
In practice, the fifth (G♭) is often omitted from the Cb7(#9) chord because it's not always possible to play all notes simultaneously.
Name
C-flat dominant seventh sharp ninth chord
Synonym
C-flat dominant sharp ninth chord
Notes
C♭ E♭ G♭ B♭♭ D
Intervals
1 3 5 ♭7 ♯9
Chord symbol
C♭7(#9)
Alternative symbol
C♭7#9
Type
Pentad (five-note chord)