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Module 5 expands everything from the pentatonic modules to the full seven-note major scale and its modes — and the punchline is that you won't need a new set of shapes. First, the modes themselves: instead of the unhelpful "start the major scale on a different degree" definition, you'll learn them by brightness order (Lydian → Ionian → Mixolydian → Dorian → Aeolian → Phrygian → Locrian), where each mode differs from its neighbor by a single note moved a semitone, and each has a characteristic note and a chord it fits. That ordering — not the bookkeeping — is the thing worth memorizing.
What follows is this lesson’s section of the Course Guide — you can read it here or in the full guide →
Most guitar players first meet the modes as a kind of bookkeeping trick. Take the major scale, start it on a different scale degree, and you get a different pattern of intervals. There are seven of these scales, one for each starting note, each with its own Greek name: start on the first scale degree, and you have Ionian (the major scale itself), on the second Dorian, on the third Phrygian, then Lydian, Mixolydian, Aeolian (the natural minor scale), and Locrian.
These definitions are technically accurate, but they aren't very helpful. They tell you where the modes come from without telling you how any of them sound. Worse, they tie every mode mentally back to its parent major scale, so that playing D Dorian means running a conversion in your head: "D Dorian is the second mode of C major, so the notes are…" That's a lot of cognitive overhead for something you should be hearing instead of calculating.
The more useful approach is to know each mode by the interval of each note relative to the tonal center, because that's how we hear them. Start from the major scale, intervals 1 through 7 in our shorthand, and make one change at a time:
Each mode differs from its neighbors in this list by moving exactly one note by one semitone. The list itself is called the brightness order, because the modes sound brighter toward the top and darker toward the bottom. The interval formulas will become automatic over the next few lessons, but the order is worth committing to memory now.
Memorize this: The brightness order of the modes: Lydian, Ionian, Mixolydian, Dorian, Aeolian, Phrygian, Locrian. Reading down the list, exactly one note moves down one fret at each step.
The notes that change between a mode and its neighbors are called characteristic notes — they are the notes that most clearly identify the mode to a listener. Each mode also pairs naturally with a chord built from its own notes, which is what we'll use for drones: brighter modes fit major-quality chords, darker modes fit minor-quality chords, and Locrian needs a half-diminished chord.
| Mode | Characteristic notes | Drone chord |
|---|---|---|
| Lydian | #4 | maj7 |
| Ionian | — | maj7 |
| Mixolydian | ♭7 (and 3) | 7 |
| Dorian | ♭3 and 6 | m7 |
| Aeolian | ♭6 and 2 | m7 |
| Phrygian | ♭2 and 5 | m7 |
| Locrian | ♭5 | m7♭5 |
One flag before moving on: Locrian is the only mode without a perfect fifth, which makes it sound unstable in a way the others don't. It's also the one mode that won't fit cleanly into the system we build in the rest of this module, so we'll handle it as a special case.
There is nothing new to practice yet. You'll get these scales under your fingers over the next several lessons, when we connect them back to the rectangle and stack.
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