Harmonisation of the Major Scale

I. Ionian (Major scale)

Chord type: Maj7.

II. Dorian

Chord type: min7.
Interval construction: b3b7

III. Phrygian

Chord type: min7.
Interval construction: b2b3b6b7

IV. Lydian

Chord type: Maj7.
Interval construction: #4

V. Mixo-lydian

Chord type: dom7.
Interval construction: b7

VI. Aeolian (relative minor scale)

Chord type: min7.
Interval construction: b3b6b7

VII. Locrian

Chord type: min7b5 (half-diminished).
Interval construction: b2b3b5b6b7