The major scale is the most important scale in Western music. Nearly every melody, chord, and key you encounter is derived from it. If you understand major scales, you understand the foundation of how Western harmony works.
What Is a Scale?
A scale is a set of notes arranged in ascending or descending order by pitch. Scales give a piece of music its tonal center — the note everything gravitates toward. That central note is called the root or tonic.
The Major Scale Pattern
Every major scale follows the same pattern of whole steps (W) and half steps (H):
W – W – H – W – W – W – H
That's seven intervals between eight notes (the eighth being the octave — the same note as the root, one octave higher).
Building a C Major Scale
Starting on C and following the pattern:
| Note | Step |
|---|---|
| C | Root |
| D | Whole step up |
| E | Whole step up |
| F | Half step up |
| G | Whole step up |
| A | Whole step up |
| B | Whole step up |
| C | Half step up (octave) |
C major is the only major scale with no sharps or flats — all white keys on the piano.
Building a G Major Scale
Start on G and apply the same pattern: G – A – B – C – D – E – F# – G
The F has to be raised to F# to maintain the correct whole-step distance between the 7th and 8th notes.
Scale Degrees
Each note in the scale has a number called its scale degree:
- 1 — Root (tonic)
- 2 — Supertonic
- 3 — Mediant
- 4 — Subdominant
- 5 — Dominant
- 6 — Submediant
- 7 — Leading tone
Scale degrees let you describe musical ideas in a way that works in any key. "The chord on the 5th degree" means the same thing whether you're in C major or F# major.
The Sound of a Major Scale
The major scale has a characteristic bright, happy, resolved sound. The half step between the 7th and the octave (the "leading tone") is what gives it so much pull back to the root. That tension-and-resolution is deeply embedded in Western ears.
Why It Matters for Songwriting
Knowing your major scales means you know which notes belong in a key and which don't. When you build chords, write melodies, or choose a key for a song — you're working from the major scale, even if you don't realize it yet.
All Major Scales
Ready to see every major scale laid out? The complete list of all major scales covers all 12 keys with their notes, diatonic triads, and relative minors.