Fbm9 chord

The F-flat minor ninth chord (abbreviated Fbm9 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 the F-flat minor seventh chord.

In practice, the fifth (C♭) is sometimes omitted from the Fbm9 chord because it's not always possible to play all notes simultaneously.