Level 1 — Scales (Part 4): The A Major Scale

Welcome back. We’re three scales in — C, G, and D. Each one added a sharp. This week: A Major. Three sharps total. Same formula, same process. Let’s walk through it.

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The Formula — It Never Changes

Every major scale is built from the same pattern of whole steps and half steps:

W — W — H — W — W — W — H

Whole, Whole, Half, Whole, Whole, Whole, Half.

You know this by now. The formula is the constant. The starting note is the variable. Start on A, follow the steps, and the scale builds itself — we just have to watch where the natural notes fall short and fix them.

Building the A Major Scale

Let’s apply W — W — H — W — W — W — H starting on A.

• Start: A
• W (whole step): A → B
• W (whole step): B → C#  (B to C is only a half step — we need C#)
• H (half step): C# → D  (C# and D are one half step apart — perfect)
• W (whole step): D → E
• W (whole step): E → F#  (E to F is only a half step — we need F#)
• W (whole step): F# → G#  (F# to G is only a half step — we need G#)
• H (half step): G# → A  (G# and A are one half step apart — formula complete)

Result: A — B — C# — D — E — F# — G# — A

Why Three Sharps?

Two of the sharps you already know — F# and C# came from G Major and D Major. They carry forward because the same spacing problems exist when you start on A. The new one is G#.

Why G#? Because F# to G is only a half step. The formula needs a whole step there, so we raise G to G#. Same logic as every sharp before it — the natural note falls one half step short, so we push it up.

A Major Has 3 Sharps: F#, C#, G#

In any piece of music written in A Major, every F is F#, every C is C#, and every G is G# — unless told otherwise. Three sharps, always the same three.

The pattern is clear now: each scale on the Circle of Fifths keeps all the sharps from before and adds exactly one new one. C had zero. G had one. D had two. A has three. This is not a coincidence — it’s the system working perfectly.

What to Do With This

Piano: play A — B — C# — D — E — F# — G# — A. Listen for that same major scale sound you’ve heard in C, G, and D. Same feeling, new location.

Guitar: A Major is one of the most common keys in all of popular music. Run the scale. You’ll recognize it immediately.

Four scales down. The formula has not changed once.

Next Week: E Major

Next week: E Major.

Four sharps. F#, C#, and G# are coming with us — and one new sharp joins the group. We’re almost at the halfway point around the Circle of Fifths.

See you next week.