Db thirteenth chord
Db13 chord for piano presented by keyboard diagrams.
Explanation: The D flat thirteenth is a seven note chord. Due to practical circumstances, some notes (as a suggestion fifth, ninth, and eleventh) is omitted and the chord is played inverted. The chord is often abbreviated as Db13.
Theory: The Db thirteenth chord is constructed by adding a third to an eleventh chord.
Notes: Dd - F - Ab - B - Eb - Gb - Bb