Db13 chord
The D-flat dominant thirteenth chord (abbreviated "Db13 chord") is a seven-note chord consisting of the notes D♭, F, A♭, C♭, E♭, G♭, and B♭. The chord is formed by adding a thirteenth to a D-flat dominant eleventh chord.
In practice, the fifth (A♭) and eleventh (G♭) are often omitted from the Db13 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.
Name
D-flat dominant thirteenth chord
Notes
D♭ F A♭ C♭ E♭ G♭ B♭
Intervals
1 3 5 ♭7 9 11 13
Chord symbol
D♭13
Type
heptad (seven-note chord)