D9♯5 (augmented ninth)

5-note augmented 9th on DD, E, F♯, A♯, C.

Press to hear the chord strummed low to high.

A dominant ninth on an augmented triad — raised fifth plus ninth, tense and shimmering.

The notes

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

Interval formula

DegreeNoteWhat it is
1Droot
9Eninth
3F♯major third
♯5A♯sharp fifth (augmented)
♭7Cflat seventh (dominant)

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

Guitar fingerings · 4

4fr21334
from fret 4
5fr3142
from fret 5
9fr21314
from fret 9
10fr1234
from fret 10

Ukulele fingerings · 3

2413
open position
5fr1234
from fret 5
8fr2413
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

9♯5 (augmented ninth) chords on every root