Master D#7(#9) Guitar Chord: Explore with Interactive Tools
Need D7(#9) rather than D#7(#9)? Jump to D7(#9).
The D#7#9 chord, also read as D# seventh sharp nine, is spelled D#, F##, A#, C# and E##: a root, a major third, a perfect fifth, a minor seventh and a sharp ninth.
Between fret 1 and fret 14, this page holds three voicings, and one of them uses an open string. A chart may write it as Eb7#9 instead, and nothing changes under your fingers. For melodies, reach for the D# Half-Whole scale: it is the eight-note scale built from alternating half steps and whole steps, and it holds all five chord tones.
Hear D#7#9 as a strum and as an arpeggio on the interactive fretboard at the top, one string at a time.
D# 7th with sharp 9th guitar chord is also written as D#7(#9), D#7#9 or D#7+9. It is also known as the Hendrix chord.
D#7#9 Chord Notes and Formula
Notes of the D# 7(#9) chord:
Tones in the Dominant Seventh Sharp Ninth Added chord:
Formula: 1 3 5 b7 #9
Same chord, different name: D#7#9 is also written as Eb7#9 (Eb seventh sharp nine).
D#7#9 Chord Interactive Fretboard
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D#7#9 Guitar Chord Diagrams
Position 1 Open
D# Seventh Sharp Nine Finger Positions
- Mute the low E string
- Mute the A string
- Let the G 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
- Place your pinky finger (4) on the fret 2 of the high E string
Position 2 Movable
D# Seventh Sharp Nine Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 5 of the D string
- 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
- Place your pinky finger (4) on the fret 7 of the B string
Position 3 Barre Movable
D# Seventh Sharp Nine Finger Positions
- 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 13 of the A string
- Place your pinky finger (4) on the fret 14 of the high E string
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Chords That Go With D#7#9
One key where D#7#9 fits is Ab major, where it works as the V chord (spelled Eb7#9 in that key), an altered chord whose F# is borrowed from outside the key. These are the main chords of that key, the ones you will often hear around it:
See every key in the guitar keys chart, or build a progression with these chords in the chord progression generator.
More D# Chords
Want to know how this chord is built? Read dominant chords explained, or browse all D# guitar chords.
Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
How do you spell the D# seventh sharp nine chord?
D#, F##, A#, C# and E##. The F## is the major third and sounds like G. The E## is the sharp ninth and sounds like F#.
Is D#7#9 another name for Eb7#9?
Yes, the two share the same pitches. Eb7#9 is spelled Eb, G, Bb, Db and F#, which is much easier to read than the two double sharps in D#7#9.
Why does D#7#9 contain E## and F##?
Chord letters follow the stack D, F, A, C, E. The major third higher than D# is F## and the sharp ninth is E##, which are the same pitches as G and F#.
Which scale suits D#7#9?
The D# Half-Whole scale, spelled D#, E, E##, F##, G##, A#, B# and C#, contains all five chord tones. Its eight notes alternate half steps and whole steps.
How many voicings does D#7#9 have on the guitar?
Three voicings are listed, from the first fret all the way to the fourteenth fret. One of them uses open strings and one is a barre voicing.
