Cbm9 chord
The C-flat minor ninth chord (abbreviated "Cbm9 chord") is a five-note chord consisting of the notes C♭, E♭♭, G♭, B♭♭, and D♭. The chord is formed by adding a major ninth to a C-flat minor seventh chord.
In practice, the fifth (G♭) is sometimes omitted from the Cbm9 chord because it's not always possible to play all notes simultaneously.
Name
C-flat minor ninth chord
Notes
C♭ E♭♭ G♭ B♭♭ D♭
Intervals
1 ♭3 5 ♭7 9
Chord symbol
C♭m9
Alternative symbols
C♭–9 C♭mi9 C♭min9
Type
Pentad (five-note chord)