Eb7b5

Eb 7b5

Octaves

Musical context

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

Theory

General info

Full name
Eb 7b5
Symbol
Eb7b5
Root
Eb
Quality
7b5

Chord notes

1Ebroot
3Gmajor 3rd
b5Adim 5th
b7Dbminor 7th

Functions & resolutions

Stability / tension
High tension — requires resolution
Most common resolutions
Unstable degrees
3G
4Ab
resolves up to the resolution tonic
4Ab
b5A
resolves inward to the resolution tonic
6C
b7Db
resolves down to the tonic 3rd
Main resolution
Eb7b5source
AbAb Major
Dominant 7th Eb7 naturally resolves up a 4th to Ab. It is the tritone between the chord's 3rd and 7th that creates this pull.
Other resolutions
Eb7b5source
Deceptive resolution
FmF Minor
Instead of the tonic, the dominant resolves to the vi degree. Creates surprise and is often used to extend a musical phrase.
Eb7b5source
Modal resolution
DbDb Major
In rock and blues, the dominant often moves to bVII or IV instead of the tonic, creating a modal flavor.
Eb7b5source
Jazz reharmonization
A7A Dominant 7
Tritone substitution: Eb7 can be replaced by A7 (a tritone away). Both chords share the same tritone between the 3rd and 7th, resolving to the same tonic.
Eb7b5source
Functional resolution
Ebsus4Eb Sus4
The dominant can resolve beyond the tonic: moving to IV (subdominant) or to a suspension (sus4) are common alternatives in pop and folk music.

Substitutions

Tritone substitution

Features

Character
Dominant, with a diminished 5th
Characteristic interval
Diminished 5th (b5), Minor 7th (b7)
Description
The diminished fifth replaces the perfect fifth, adding a tritone to the dominant tension. Sharper than a regular dom7.
Application
  • Tritone substitution
  • Jazz ii-V-I
  • Altered blues

Voicing & structure

Root position

v1Eb(Eb4)Bass
root
v2G(G4)M3from Eb
v3A(A4)M2from G
v4Db(Db5)M3from A

Harmony

Compatible scales

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

This chord on guitar 🎸

See how Eb7b5 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