Select tone :

major

minor

diminished

augmented

At first we give resume, after we inspect where chords are in all modes.

In major scales

Major scale structure.

List of all major scales.

chord appears in 3 keys, at different degrees:

It's tonic I in key of major, with tonic function T .
It's fourth IV in key of major, with subdominant function SD .
It's fifth V in key of major, with dominant function D .

m chord appears in 3 keys, at different degrees:

It's second II in key major, with subdominant function SD .
It's third III in key of major, with dominant function D .
It's sixth V in key of major, with tonic function T .

° chord appears only once:

It's seventh VII in key of major, with dominant function D .

In natural minor scales

Natural minor scale structure.

List of all natural minor scales.

m chord appears in 3 keys, at different degrees:

It's tonic I in key of natural minor, with tonic function T .
It's fourth IV in key of natural minor, with subdominant function SD .
It's fifth V in key of natural minor, with subdominant function SD .

chord appears in 3 keys, at different degrees:

It's third bIII in key of natural minor, with tonic function T .
It's six bVI in key of natural minor, with subdominant function SD .
It's seven bVII in key of natural minor, with subdominant function SD .

° chord appears only once:

It's second II in key of natural minor, with subdominant function SD .

In minor harmonic scales

Minor harmonic scale structure.

List of all minor harmonic scales.

m chord appears in 2 keys, at different degrees:

It's tonic I in key of harmonic minor, with tonic function T .
It's fourth IV in key of harmonic minor, with subdominant function SD .

chord appears in 2 keys, at different degrees:

It's fifth V in key of harmonic minor, with dominant function D .
It's six bVI in key of harmonic minor, with subdominant function SD .

° chord appears in 2 scales, at different degrees:

It's second II in key of harmonic minor, with subdominant function SD .
It's seventh VII in key of harmonic minor, with dominant function D (enharmonic °).

+5 chord appears only once:

It's third bIII in key of harmonic minor, with dominant function D .

In minor melodic scales

Minor melodic scale structure.

List of all minor melodic scales.

m chord appears in 2 scales, at different degrees:

It's tonic I in key of melodic minor, with tonic function T .
It's second II in key of melodic minor, with subdominant function SD .

chord appears in 2 scales, at different degrees:

It's fourth IV in key of melodic minor, with subdominant function SD .
It's fifth V in key of melodic minor, with dominant function D .

° chord appears in 2 scales, at different degrees:

It's sixth VI in key of melodic minor, with tonic function T .
It's seventh VII in key of melodic minor, with dominant function D .

+5 chord appears only once:

It's tierce bIII in key of melodic minor, with dominant function D .

In dorian modes (D mode)

Dorian mode structure.

List of all dorian modes.

m chord appears in 3 modes, at different degrees:

It's tonic I of dorian mode, with tonic function T .
It's second II of dorian mode, with subdominant function SD .
It's fifth V of dorian mode, with subdominant function SD .

M7 chord appears in 3 modes, at different degrees:

It's third bIII of dorian mode, with tonic function T .
It's fourth IV of dorian mode, with subdominant function SD .
It's seventh bVII of dorian mode, with subdominant function SD .

° chord appears only once:

It's sixth VI of dorian mode, with tonic function T .

In phrygian modes (E mode)

Phrygian mode structure.

List of all phrygian modes.

m chord appears in 3 modes, at different degrees:

It's tonic I of phrygian mode, with tonic function T .
It's fourth IV of phrygian mode, with subdominant function SD .
It's seventh bVII of phrygian mode, with subdominant function SD .

chord appears in 3 modes, at different degrees:

It's second bII of phrygian mode, with subdominant function SD
This chord is usually named the neapolitan chord.
It's third bIII of phrygian mode, with tonic function T .
It's sixth bVI of phrygian mode, with subdominant function SD .

° chord appears only once:

It's fifth V of phrygian mode, with subdominant function SD .

In lydian modes (F mode)

Lydian mode structure.

List of all lydian modes.

chord appears in 3 modes, at different degrees:

It's tonic I of lydian mode, with tonic function T .
It's second II of lydian mode, with subdominant function SD .
It's fifth V of lydian mode, with dominant function D .

m chord appears in 3 modes, at different degrees:

It's third III of lydian mode, with dominant function D .
It's sixth VI of mlydian mode, with tonic function T .
It's seventh VII of lydian mode, with dominant function D .

° chord appears only once:

It's fourth #IV of lydian mode, with subdominant function SD .

In mixolydian modes (G mode)

Mixolydian mode structure.

List of all mixolydian modes.

chord appears in 3 modes, at different degrees:

It's tonic I of mixolydian mode, with tonic function T .
It's fourth IV of mixolydian mode, with subdominant function SD .
It's seventh bVII of mixolydian mode, with subdominant function SD .

m chord appears in 3 modes, at different degrees:

It's second II of mixolydian mode, with subdominant function SD .
It's fifth V of mixolydian mode, with subdominant function SD .
It's sixth VI of mixolydian mode, with tonic function T .

° chord appears only once:

It's third III of mixolydian mode, with tonic function T .

In locrian modes (B mode)

Locrian mode structure.

List of all locrian modes.

° chord appears only once:

It's tonic I of locrian mode, with 'tonic' function T .

m chord appears in 3 modes, at different degrees:

It's third bIII of locrian mode, with subdominant function SD .
It's fourth IV of locrian mode, with subdominant function SD .
It's seventh bVII of locrian mode, with subdominant function SD .

chord appears in 3 modes, at different degrees:

It's second bII of locrian mode, with subdominant function SD .
It's fifth bV of locrian mode, with subdominant function SD .
It's sixth bVI of locrian mode, with subdominant function SD .