Eb13b5b9

Eb 13b5b9

Octaves

Musical context

How the chord relates to the scale, mode, key and progression.

Theory

General info

Full name
Eb 13b5b9
Symbol
Eb13b5b9
Root
Eb
Quality
13b5b9

Chord notes

1Ebroot
3Gmajor 3rd
b5Adim 5th
b7Dbminor 7th
b2Fbminor 2nd
6Cmajor 6th

Functions & resolutions

Stability / tension
Stable — can serve as major tonic
Most common resolutions
Unstable degrees
4Ab
b5A
resolves inward to the 4th
4Ab
b7Db
resolves down to the resolution tonic
Main resolution
Eb13b5b9source
BbBb Major
Major chord Eb is a stable tonic. As tonic it doesn't require resolution, but in a progression context typically moves to IV or V.
Other resolutions
Eb13b5b9source
Deceptive resolution
CmC Minor
As the V degree, a major chord can defy expectations by moving to vi instead of I (deceptive cadence).
Eb13b5b9source
Modal resolution
DbDb Major
In modal context, a major chord can freely move to bVII, bIII, or bVI — characteristic of Mixolydian mode.
Eb13b5b9source
Jazz reharmonization
Ebmaj7Eb Major 7
In jazz, a major chord is enriched to maj7, 6/9, or add9 and can smoothly transition into a ii-V of another key (modulation).
Eb13b5b9source
Functional resolution
BbBb Major
As the IV degree (subdominant), a major chord can resolve to V or directly to I (plagal cadence).

Substitutions

Tritone substitution

Features

Character
Dominant, with b5, b9 and 13th
Characteristic interval
Diminished 5th (b5), Minor 9th (b9), 13th
Description
The diminished 5th and minor 9th alter the dominant chord, while the major 13th extends it. Semitone tendencies from b5 and b9 create dense, directed tension.
Application
  • Avant-garde jazz
  • Complex cadences
  • Improvising over altered scales

Voicing & structure

Root position

v1Eb(Eb4)Bass
root
v2G(G4)M3from Eb
v3A(A4)M2from G
v4Db(Db5)M3from A
v5Fb(Fb5)m3from Db
v6C(C6)m6from Fb

Harmony

Compatible scales

All chord tones are contained in these scales — use them for improvisation.

This chord on guitar 🎸

See how Eb13b5b9 looks on guitar.

Explore

Circle of fifths

Highlighted major keys contain this chord among their diatonic harmonies.

CAmGEmDBmAF#mEC#mBG#mF#D#mDbBbmAbFmEbCmBbGmFDmEbmajor
Relative key
Dominant
Subdominant
Key signature
3 flats (Bb, Eb, Ab)

Practice

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Frequently Asked Questions