Dbmaj9 chord

The D-flat major ninth chord (abbreviated Dbmaj9 chord) is a five-note chord consisting of the notes D♭, F, A♭, C, and E♭. The chord is formed by adding a major ninth to the D-flat major seventh chord.

In practice, the fifth (A♭) is sometimes omitted from the Dbmaj9 chord because it's not always possible to play all notes simultaneously.