Dbalt

Db Altered

Octaves

Musical context

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

Theory

General info

Full name
Db Altered
Symbol
Dbalt
Root
Db
Quality
Altered

Chord notes

1Dbroot
3Fmajor 3rd
b5Gdim 5th
b7Cbminor 7th
b2Dminor 2nd

Functions & resolutions

Stability / tension
High tension — requires resolution
Most common resolutions
Unstable degrees
3F
4Gb
resolves up to the resolution tonic
4Gb
b5G
resolves inward to the resolution tonic
6Bb
b7B
resolves down to the tonic 3rd
1Db
b2D
resolves down to the tonic 5th
Main resolution
Dbaltsource
GbGb Major
Dominant 7th Db7 naturally resolves up a 4th to Gb. It is the tritone between the chord's 3rd and 7th that creates this pull.
Other resolutions
Dbaltsource
Deceptive resolution
EbmEb Minor
Instead of the tonic, the dominant resolves to the vi degree. Creates surprise and is often used to extend a musical phrase.
Dbaltsource
Modal resolution
BB Major
In rock and blues, the dominant often moves to bVII or IV instead of the tonic, creating a modal flavor.
Dbaltsource
Jazz reharmonization
G7G Dominant 7
Tritone substitution: Db7 can be replaced by G7 (a tritone away). Both chords share the same tritone between the 3rd and 7th, resolving to the same tonic.
Dbaltsource
Functional resolution
Dbsus4Db 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
Altered dominant, dissonant
Characteristic interval
Diminished 5th (b5), Minor 7th (b7)
Description
The minor 7th establishes dominant function, while altered 5ths and extensions intensify chromatic voice leading into the next chord.
Application
  • V chord in jazz (alt → i)
  • Improvising over the altered scale
  • Substitution for a dominant 7th

Voicing & structure

Root position

v1Db(Db4)Bass
root
v2F(F4)M3from Db
v3G(G4)M2from F
v4Cb(Cb4)M3from G
v5D(D5)m3from Cb

Harmony

Compatible scales

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

This chord on guitar 🎸

See how Dbalt looks on guitar.

Explore

Circle of fifths

Highlighted major keys contain this chord among their diatonic harmonies.

CAmGEmDBmAF#mEC#mBG#mF#D#mDbBbmAbFmEbCmBbGmFDmDbmajor
Relative key
Dominant
Subdominant
Key signature
5 flats (Bb, Eb, Ab, Db, Gb)

Practice

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Frequently Asked Questions