Mode
The seven scales you get by starting the major-scale pattern on each of its different notes, each rotation carrying its own distinct mood.
Mode
A mode is what you get when you take one Scale and start it on a different note. Play only the white keys but treat D as home instead of C, and the same seven pitches suddenly sound minor-ish and folky. You have not changed the notes — you have changed which one feels like the center, and that single shift rewrites the pattern of intervals around home. The major scale has seven notes, so it hides seven modes.
The seven rotations
Each mode is the major-scale steps rotated to begin on a different degree. Their classical Greek names and characteristic moods:
| Mode | Start on (in C) | Flavor |
|---|---|---|
| Ionian | C | the plain major scale — bright, resolved |
| Dorian | D | minor, but hopeful; jazzy |
| Phrygian | E | dark, Spanish, tense |
| Lydian | F | dreamy, floating (raised 4th) |
| Mixolydian | G | major with a bluesy lowered 7th |
| Aeolian | A | the natural minor scale — wistful |
| Locrian | B | unstable, rarely used (diminished home chord) |
Two of these you already know under other names: Ionian is the major scale and Aeolian is the natural minor. The other five are the same white keys reheard from a new home.
Why modes feel different
The mood lives in where the half-steps fall relative to home. In Ionian the half-steps sit between degrees 3–4 and 7–8, giving that strong pull home. Shift the start and those half-steps land in new places: Phrygian puts one right above the tonic (a tense lowered second), which is exactly why it sounds so dark. The brightness or darkness of a mode lines up neatly with its position on the Circle of Fifths — brighter modes have more sharps, darker ones more flats.