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intermediatetheory
Modes: Dorian & Mixolydian
Apply Dorian over minor chords, Mixolydian over dominant chords.
Objective
Play D Dorian and G Mixolydian scales in two positions and understand when to use each over a ii–V–I.
Concepts
- ▸A mode is a major scale starting from a different degree. Same notes, different home base.
- ▸Dorian is the 2nd mode of the major scale. D Dorian = C major scale, but starting on D. Formula: W H W W W H W.
- ▸Dorian sounds minor but brighter than natural minor because the 6th is natural (not flat).
- ▸Mixolydian is the 5th mode of the major scale. G Mixolydian = C major scale, starting on G. Formula: W W H W W H W.
- ▸Mixolydian is like a major scale with a flat 7 — perfect over a dominant 7 chord.
- ▸ii–V–I modal pairing: Dm7 → Dorian, G7 → Mixolydian, Cmaj7 → Ionian (major scale).
Diagram / Notation
D Dorian (same notes as C Major, starting on D) e --5--7--8-- B --5--6--8-- G --5--7---- D --5--7---- A --5--7---- E (start on D: open D or 5th fret A string) G Mixolydian (same notes as C Major, starting on G) e --3--5--6--8-- B --3--5--6--8-- G --4--5--7---- D --3--5------ A --3--5------ E (start on G: 3rd fret low E)
Exercises
1.D Dorian ascending/descending
- 1.Play D Dorian one octave up and back, starting on the open D string.
- 2.Notes: D E F G A B C D.
- 3.Say the note names aloud as you play.
- 4.Repeat until you can play it without looking at the diagram.
2.Modal switch drill
- 1.Over a slow Dm7 vamp, improvise using only D Dorian notes for 30 seconds.
- 2.Switch to G Mixolydian over a G7 vamp for 30 seconds.
- 3.Return to C major (Ionian) over Cmaj7.
- 4.The challenge: hear each scale change as a color shift, not just a technical movement.
3.Characteristic note focus
- 1.Dorian: emphasize the natural 6th (B in D Dorian). It is the note that makes it "bright minor".
- 2.Mixolydian: emphasize the flat 7 (F in G Mixolydian). It creates the dominant tension.
- 3.Compose a 4-bar phrase that lands on the characteristic note of each mode.
Tips
- 💡Do not memorize modes as separate scales — relate them back to their parent major scale.
- 💡Practice singing the scales. Your ear must recognize the sound before your fingers can use them musically.
- 💡The "avoid note" in Mixolydian is the 4th (C over G7) — it clashes with the major 3rd. Use it as a passing tone only.
- 💡Listen to Miles Davis "So What" (Dorian) and "Freddie Freeloader" (Mixolydian) for instant context.