Practice D#7(b9): Get Instant Feedback & Master This Complex Chord

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D# 7(b9) position 1 guitar chord diagram

The D#7(b9) chord, also read as D# seventh flat nine, is spelled D#, F##, A#, C# and E: a root, a major third, a perfect fifth, a minor seventh and a flat ninth. Being a dominant chord, it most often pulls toward a minor chord whose root is a fourth above D#.

Between fret 1 and fret 12, this page holds three voicings, and one of them uses an open string. A chart may write it as Eb7(b9) instead, and nothing changes under your fingers. For melodies, reach for the D# Phrygian Dominant scale: it is the fifth mode of the harmonic minor scale, and it holds all five chord tones.

Hear D#7(b9) as a strum and as an arpeggio on the interactive fretboard at the top, one string at a time.

D# 7th with flat 9th guitar chord is also written as D#7(b9), D#7b9 or D#7-9.

Notes of the D# 7(b9) chord:

D# F## A# C# E

Chord structure of the Dominant Seventh Flat Nine Added chord:

1
b2
2
b3
3
4
b5
5
#5
6
b7
7
8
b9
9
#9
11
#11
13

D# 7(B9) Guitar Chord Diagrams

Position 1 Open

D# 7(b9) position 1 guitar chord diagram

Finger Positions

  • Mute the low E string
  • Mute the A string
  • Let the G string play without pressing any fret
  • Let the high E string play without pressing any fret
  • Place your index finger (1) on the fret 1 of the D string
  • Place your ring finger (3) on the fret 2 of the B string

Position 2 Barre Movable

D# 7(b9) position 2 guitar chord diagram

Finger Positions

  • Mute the low E string
  • Mute the high E string
  • Place your index finger (1) on the fret 5 of the D and B strings at the same time
  • Place your middle finger (2) on the fret 6 of the A string
  • Place your ring finger (3) on the fret 6 of the G string

Position 3 Barre Movable

D# 7(b9) position 3 guitar chord diagram

Finger Positions

  • Mute the A string
  • Place your index finger (1) on the fret 11 of the low E, D and B strings at the same time
  • Place your middle finger (2) on the fret 12 of the G string
  • Place your ring finger (3) on the fret 12 of the high E string

download this tutorial in pdf Find more shapes in our all guitar chords online library. If you prefer a printable pdf, download the Free Guitar Chords Chart Pdf

Play This Chord With Other Roots

C 7(b9) | D 7(b9) | E 7(b9) | F 7(b9) | G 7(b9) | A 7(b9) | B 7(b9) | C#7(b9) | D#7(b9) | F#7(b9) | G#7(b9) | A#7(b9) | Ab7(b9) | Bb7(b9) | Db7(b9) | Eb7(b9) | Gb7(b9)

Giancarlo Facoetti, founder of FaChords Guitar

Created by

Giancarlo Facoetti

Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher

FAQ

Which notes form the D# seventh flat nine chord?

D#, F##, A#, C# and E. The F## is the major third and sounds like G, while the E on top is the flat ninth, a half step higher than D# one octave up.

Is D#7(b9) the same chord as Eb7(b9)?

Yes, they are enharmonic twins with the same sound. Eb7(b9) is spelled Eb, G, Bb, Db and Fb, which avoids double sharps. Which one you meet depends on the key of the music.

Why does D#7(b9) include a double sharp?

The third higher than D# has to carry the letter F. A major third higher than D# is F##, a note that sounds like G. Spelling it G would break the stacked-thirds letter pattern D, F, A, C, E.

What scale can I play over D#7(b9)?

Try the D# Phrygian Dominant scale: D#, E, F##, G#, A#, B and C#. It contains all five chord tones and is the fifth mode of harmonic minor.

How many voicings does D#7(b9) have on the guitar?

Three voicings are listed, from the first fret up to the twelfth fret. One of them uses open strings and two are barre voicings.