Db11 chord
The D-flat dominant eleventh chord (abbreviated "Db11 chord") is a six-note chord consisting of the notes D♭, F, A♭, C♭, E♭, and G♭. The chord is formed by adding an eleventh to a D-flat dominant ninth chord.
In practice, the third (F) and fifth (A♭) are often omitted from the Db11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
D-flat dominant eleventh chord
Notes
D♭ F A♭ C♭ E♭ G♭
Intervals
1 3 5 ♭7 9 11
Chord symbol
D♭11
Type
Hexad (six-note chord)