The Major Scale

A scale is simply a set of notes arranged in order, low to high. Of all the scales, the major scale is the one your ear knows best: it sounds bright, complete, and settled. What makes it a major scale is not where it starts but the exact pattern of distances between its notes.

Whole steps and half steps

The smallest distance on the piano is a half step (H): the very next key, black or white, with nothing in between. Two half steps make a whole step (W). Every major scale, without exception, follows this pattern of steps from its starting note, the root:

W - W - H - W - W - W - H

Follow that sequence and you land back on the same letter you began with, one octave higher.

Building C major

Start on C and apply the pattern. Each step lands you on the next note of the scale:

The result is C D E F G A B, every one of them a white key. This is why C major has no sharps or flats: the natural notes already line up perfectly with the W-W-H-W-W-W-H pattern.

The same pattern, any root

Here is the powerful part. Start on any other note and follow the same pattern, and you get that note's major scale. It still sounds bright, because the shape of the steps is identical. Take G:

• G to A is a whole step, A to B a whole step, B to C a half step.
• C to D, D to E, E to F♯ are all whole steps.
• F♯ to G is the closing half step, back to the root.

That gives G A B C D E F♯. If you used a plain F, the step from E to F would be a half step in the wrong place and the scale would lose its major sound. The F♯ exists only to protect the pattern. Different roots simply need different sharps or flats to keep the same shape intact.

Hear it for yourself

Use the explorer below to pick a root and play its major scale. Try C, then G, then a root of your choosing. Listen closely: the notes are different each time, but the bright, familiar W-W-H-W-W-W-H climb is always the same.