D#13(b9) Guitar Chord | How To Create and Play the D# Dominant Thirteen Flat Nine chord

D# 13(b9) guitar chord shapes

D# thirteenth flat nine is the full name of D#13(b9), a chord of seven notes: D#, F##, A#, C#, E, G# and B#.

Two notes carry the dominant pull: the major third F## and the minor seventh C#, which sit a tritone apart. The chord is also spelled Eb13(b9), and the two names mean exactly the same sound. The D# Half-Whole scale fits it, with every chord tone except the eleventh.

Like any dominant it resolves to the chord a fourth above D#, and if that chord is minor the flat ninth falls to its fifth.

D# 13th with flat 9th guitar chord is also written as D#13(b9), D#13b9 or D#13-9.

D# 13(b9) chord Notes:

D# F## A# C# E G# B#

How to create the Dominant Thirteen Flat Nine chord:

Formula: 1 3 5 b7 b9 11 13

Play This Chord With Other Roots

C 13(b9) | D 13(b9) | E 13(b9) | F 13(b9) | G 13(b9) | A 13(b9) | B 13(b9) | C#13(b9) | D#13(b9) | F#13(b9) | G#13(b9) | A#13(b9) | Ab13(b9) | Bb13(b9) | Db13(b9) | Eb13(b9) | Gb13(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 does D#13(b9) contain?

D#13(b9) contains D#, F##, A#, C#, E, G# and B#. They are the root, major third, perfect fifth, minor seventh, flat ninth, eleventh and thirteenth.

How does D#13(b9) differ from D#13?

D#13 has a natural ninth, E#. In D#13(b9) that note is lowered by a half step to E, which makes the chord sound more tense and more urgent.

Is D#13(b9) the same chord as Eb13(b9)?

Yes, only the spelling differs. Eb13(b9) uses Eb, G, Bb, Db, Fb, Ab and C, so it avoids the F## that D#13(b9) needs.

Which scale can I use over D#13(b9)?

Try the D# half-whole scale. It contains every chord tone except the eleventh, G#, and it includes both the flat ninth E and the thirteenth B#.