Db 11th chord

Db11 chord for piano presented by keyboard diagrams.
Explanation: The D flat eleventh is a six-note chord. To avoid dissonance the third (F) is normally omitted. The chord is also often played inverted. The chord is abbreviated as Db11.
Omissions: Db11(no3): Db - Ab - B - Eb - Gb; Db11(no9): Db - F - Ab - B - Gb.
Theory: The Db eleventh chord is constructed by adding a third to a ninth chord.