Common Chord-Scale Relationships

Chord

Scale

I major, I 6, I maj7

Ionian

Other maj7s

Lydian

I minor, I minmaj7

Melodic Minor, Harmonic Minor

I min7

Dorian, Phrygian, Aeolian

III min7

Phrygian

VI min7

Aeolian

min6, II min7 and all other min7s

Dorian

V 7

Mixolydian, Lydian b7, Altered, Whole Tone, Diminished (H-W)

All other 7th chords

Lydian b7

min7b5

Locrian

Dim7

Diminished (W-H)