D13♭9

6-note dominant 13th flat 9 on DD, D♯, F♯, A, B, C.

Press to hear the chord strummed low to high.

A dominant thirteenth with a flat ninth — the sweet thirteenth over the biting flat nine, a hallmark of bebop turnarounds.

The notes

Pitches taken from the first fingering below — click any note to open its frequency page.

Interval formula

DegreeNoteWhat it is
1Droot
♭9D♯flat ninth
3F♯major third
5Aperfect fifth
13Bthirteenth
♭7Cflat seventh (dominant)

The formula reads in semitones above the root (D): 1, ♭9, 3, 5, 13, ♭7. A voicing may leave a tone out — often the fifth — but never adds one from outside this set.

Ukulele fingerings · 4

2fr4211
from fret 2
4213
open position
5fr1243
from fret 5
8fr1412
from fret 8

Read a diagram top-down: the thick bar is the nut, dots are where to press (the number is which finger), means play the open string, means don't play it. A bar across strings is a barre.

Other D chords

13♭9 chords on every root