What is the major scale?
- Ionian modeWestern mode
- Do-re-mi scale
- BilavalबिलावलHindustani thaat
- ShankarabharanamCarnatic melakarta
- ≈AjamعجمArabic maqam
The major scale is a seven-note scale built from the pattern whole–whole–half–whole–whole–whole–half. In C it is the white keys, C to C, and it is the reference point every other scale is described against: its are the plain numbers 1 to 7, and a ♭ or ♯ on any other scale means 'one key away from where the major scale puts it.'
The major scale is the do-re-mi scale of European music, and the piano was laid out around it: the two half steps in C fall exactly where two white keys touch with no black key between them (E–F and B–C). Its relative minor shares every key from a different home, and its seven — Dorian, Mixolydian, and the rest — are the same seven notes with each degree in turn treated as home.
This page is a lesson, not a poster. Read it top to bottom; every section has something to press, and the whole page follows one root and one octave — change either and everything below changes with it. If the low keys are hard to hear on your speaker, use Octave + to lift the whole lesson.
1. First, hear it: the white keys
A piano has only twelve different notes; after twelve keys the names start over. A is a short list of those twelve that a piece of music treats as home. The major scale is the list you already know even if you have never sat at a piano — it is do-re-mi, it is the tune of “Twinkle, Twinkle,” and in C it is every white key from one C to the next with no black keys at all.
The keyboard below is locked to C major. Keys with a green number are in the scale and play; keys with a red dot stay silent. Press Play to hear the whole run up and back. If you leave the root on C, notice that every red dot is a black key — that is not a coincidence, and section 3 explains it.
2. Counting from home: the seven degrees
Every scale has a home note, the — here C, and the picker above moves it. The other notes are named by how far above the root they sit: their , numbered 1 to 7. In the major scale those numbers come plain, with no in front of them. That is not because the major scale is simple. It is because the major scale is the ruler: every other scale on this site is described by how it differs from this one, so this is the one that gets to be plain.
| Degree | Half steps (keys) above the root | In C | What it is |
|---|---|---|---|
| 1 | 0 | C | the root — home (do) |
| 2 | 2 | D | second (re) |
| 3 | 4 | E | major third — what makes it major (mi) |
| 4 | 5 | F | fourth (fa) |
| 5 | 7 | G | fifth (sol) |
| 6 | 9 | A | sixth (la) |
| 7 | 11 | B | seventh — one key below home (ti) |
The middle column counts keys above the root, black and white alike; each key is one . Read it and the major scale is a list of distances: 0 2 4 5 7 9 11. Change the root at the top and the letters in the third column all change, but that list does not — and that list is the scale. Click a chip to hear each degree in C.
3. The recipe: whole, whole, half
Look at the gaps between neighbours instead of the distance from home. From 1 to 2 is two keys — a . 2 to 3 is two more. Then 3 to 4 is only one key: a half step. Three more whole steps, then one last half step back to the octave. Written out: W W H W W W H. That eight-word recipe is the whole major scale, in any key, on any instrument.
Now the white keys make sense. In C the two half steps fall on E–F and B–C — exactly the two places on a piano where two white keys touch with no black key between them. The keyboard is not laid out that way by chance; it was built around this scale. Move the root to G and one black key joins the list (F♯); move it to D and two do. The recipe never changes. Only which keys happen to satisfy it.
4. What “major” means: the third
Of the seven degrees, one carries the name. The 3 sits four keys above the root — in C that is E — and a third that wide is called a major third. It is the bright, open, settled sound in the scale. Lower it one key and the whole scale turns minor, whatever else you do. Press the pair below and listen to the character change on the second note.
The 7 matters nearly as much. It sits one key below the root and leans into it — play B and your ear is already waiting for C. Musicians call it the leading tone; it is why a major-scale melody that ends on 7 → 1 sounds finished. Natural minor does not have one, which is half of why minor feels less resolved.
5. Same keys, different home: the relative minor
Here is the map view. Take the seven keys of C major and, without turning any on or off, call the 6 home instead. You are now playing natural minor starting on A — the relative minor of C major. In C that is A minor: still all white keys, but everything settles on A and the scale sounds dark instead of bright. Flip the toggle: nothing lights or dims, only the green 1 moves.
C major uses exactly the same keys as A natural minor. Nothing turns on or off — only 1 moves. Home is now C, which was the ♭3 of A natural minor. Play both runs and hear how the same notes settle in a different place.
This is the first most people learn without knowing the word: one set of notes, two homes. Every degree of the major scale can be a home in the same way — start on 2 and you have Dorian, on 5 and you have Mixolydian. Those pages pick the story up from here.
6. Same home, three keys lowered: the parallel minor
The other way to reach minor is to keep C as home and change the recipe. Lower the 3, the 6, and the 7 each by one key and you have C natural minor — the parallel minor, same root, different notes. Flip the toggle and watch three keys go dark while their lower neighbours light. The lowered third is the one doing most of the work; the other two follow it.
Major keeps every other note but changes ♭3 (E♭) to 3 (E) and ♭6 (A♭) to 6 (A) and ♭7 (B♭) to 7 (B). Flip the toggle and watch 3 keys go dark while their neighbours light up.
Two routes to the same kind of scale — re-home the keys, or lower some of them — and both are worth having in your hands. Relative thinking tells you which scales share a keyboard. Parallel thinking tells you which single notes make the difference between one character and another. Every scale page on this site uses one or the other, and usually both.
7. What to do with it
Keep the lock on and play the green keys in any order. End phrases on 1; arrive from 7 below or 2 above and feel how both lean home. Then take one note away at a time — drop the 4 and the 7 and you have the five-note major pentatonic; lower the third and go to minor pentatonic and from there to the blues scale. Every one of them is this scale with a few decisions made.
Quick reference
- Formula
- 1 – 2 – 3 – 4 – 5 – 6 – 7
- In C
- C – D – E – F – G – A – B