The 7 diatonic modes are rotations of the major scale, each with a unique interval structure and characteristic mood

The seven diatonic modes (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) are each generated by starting on a different degree of the major scale. Ionian = major scale (degree 1). Dorian = starts on degree 2 (minor with raised 6th). Phrygian = degree 3 (minor with flat 2nd — used in psy-trance, flamenco). Lydian = degree 4 (major with raised 4th — euphoric). Mixolydian = degree 5 (major with flat 7th — rock). Aeolian = degree 6 (natural minor). Locrian = degree 7 (diminished 5th with tonic — dark techno/DnB). Each can be transposed to any of 12 keys.

Examples

D Dorian: D E F G A B C D (minor-like with B natural). E Phrygian: E F G A B C D E (characteristic E-F half-step drop used in psy-trance).

Assessment

Identify the mode: a scale starting on G using all white keys. Identify the characteristic interval that distinguishes Lydian from Ionian.