• ⏱ Estimated Time: 25 minutes reading + 20 minutes practice = 45 minutes total
• 📋 Requirements: Completed Lesson 19 — The Pentatonic Scale
• 🎯 Goal: Learn the major scale pattern, understand how it builds all chords and keys, and play it in two positions

The Mother of All Scales

Every scale, every chord, every key, every mode and every piece of music theory you will ever encounter is built from the major scale. It is the foundation of Western music. Understanding it does not just make you a better guitarist — it makes music itself make sense.

You already know the major scale by sound. Do Re Mi Fa Sol La Ti Do — that is the major scale. Every note of that familiar sound maps directly onto the guitar fretboard in a pattern you are about to learn.

1. The Major Scale Formula

The major scale is built from a specific pattern of whole steps and half steps between notes. A whole step is 2 frets. A half step is 1 fret.

The formula is always: W W H W W W H

• W — Whole step — move 2 frets
• H — Half step — move 1 fret

Starting from any note and following this formula gives you the major scale of that key. Starting from G: G A B C D E F# G. Starting from C: C D E F G A B C. The formula never changes — only the starting note does.

2. The Major Scale on Guitar — Position 1

Here is the G major scale in position 1 starting at fret 3 on the low E string:

e |--2--3--5--|
B |--3--5-----|
G |--2--4--5--|
D |--3--5-----|
A |--2--3--5--|
E |--3--5-----|

Three notes per string on most strings. Index finger covers the lowest fret on each string, middle or ring covers the middle, pinky covers the highest. Play it slowly from low E to high E and back. Every note rings clearly with alternate picking.

Notice it has more notes per string than the pentatonic. That is because the major scale has 7 notes instead of 5. The extra notes give it more melodic colour but also more opportunity to clash with chords if used carelessly.

3. How the Major Scale Builds Chords

Every chord in a key is built by stacking every other note of the major scale. Start on any note of the scale, skip a note, take the next, skip a note, take the next. That gives you a three note chord — a triad.

In G major:

• Start on G — skip A — take B — skip C — take D — gives you G major chord (G B D)
• Start on A — skip B — take C — skip D — take E — gives you A minor chord (A C E)
• Start on B — skip C — take D — skip E — take F# — gives you B minor chord (B D F#)

This is why the chords in a key sound good together — they are all built from the same pool of notes. The major scale is the DNA of everything.

4. The Major Scale and the Number System

In Lesson 11 you learned the Nashville Number System. Now you can see exactly where those numbers come from. Each number corresponds to a note of the major scale:

• 1 — G — major chord
• 2 — A — minor chord
• 3 — B — minor chord
• 4 — C — major chord
• 5 — D — major chord
• 6 — E — minor chord
• 7 — F# — diminished chord

The number system and the major scale are the same thing viewed from different angles. Understanding both together gives you a complete picture of how music is organised.

5. The Circle of Fifths — Full Explanation

You were introduced to the circle of fifths in Lesson 11. Now you have enough knowledge to understand it fully.

The circle of fifths arranges all 12 keys in a circle where each key is a perfect fifth apart from its neighbours. Moving clockwise adds one sharp to the key signature. Moving anticlockwise adds one flat.

• C major — no sharps or flats — the simplest key
• G major — 1 sharp (F#)
• D major — 2 sharps (F# C#)
• A major — 3 sharps
• E major — 4 sharps
• F major — 1 flat (Bb)
• Bb major — 2 flats

Keys that sit next to each other on the circle share almost all the same chords. This is why chord progressions that move in fifths — like G to C to F — sound so natural. They are close neighbours on the circle sharing most of their DNA.

6. Major Scale Modes — A First Look

A mode is what you get when you start the major scale on a different note within the same key. The G major scale has 7 notes — starting the scale on each of those 7 notes gives you 7 different modes each with a distinct sound and emotional character.

• Ionian — start on 1 — the major scale itself — bright and resolved
• Dorian — start on 2 — minor with a raised 6th — jazzy and smooth
• Phrygian — start on 3 — very dark and Spanish sounding
• Lydian — start on 4 — dreamy and floating
• Mixolydian — start on 5 — major but bluesy — used constantly in rock
• Aeolian — start on 6 — the natural minor scale — dark and emotional
• Locrian — start on 7 — very dissonant — rarely used

You do not need to master modes today. Just know they exist and that they all come from the major scale. We cover them in full in Lesson 21.

Practice Checklist

Complete every item before moving to Lesson 21.

• ☐ G major scale run up — position 1 at fret 3, low E to high E, alternate picking, metronome 60 BPM, 10 repetitions. Target: 5 minutes
• ☐ G major scale run down — high E to low E, alternate picking, metronome 60 BPM, 10 repetitions. Target: 5 minutes
• ☐ Scale in thirds — play every other note of the scale going up: G B, A C, B D and so on. This builds your ear for the chord tones within the scale. Target: 5 minutes
• ☐ Major scale formula — write out the C major scale from memory using W W H W W W H formula. C D E F G A B C. Target: 3 minutes
• ☐ Write out D major scale — apply the formula starting from D. D E F# G A B C# D. Target: 3 minutes
• ☐ Circle of fifths study — search “circle of fifths diagram” online, look at it for 5 minutes, identify where G C D and E minor sit on it. Target: 5 minutes
• ☐ Major scale over backing track — find a G major backing track on YouTube, play through position 1 of the G major scale over it, notice which notes sound resolved and which create tension. Target: 8 minutes
• ☐ Bonus — C major scale position 1 — work out the C major scale pattern starting at fret 8 low E, play it up and down. Target: 5 minutes

What You Learned This Lesson

• ✅ The major scale formula — W W H W W W H
• ✅ The G major scale in position 1 on the fretboard
• ✅ How the major scale builds every chord in a key
• ✅ How the major scale connects to the number system
• ✅ The circle of fifths — full explanation
• ✅ The 7 modes of the major scale — a first look

Lesson Progress

Posture ████████████ MASTERED ✅

Tab Reading ████████████ MASTERED ✅

First Chords ████████████ MASTERED ✅

Strumming ████████████ MASTERED ✅

Music Theory ████████████ MASTERED ✅

Full Chord Family ████████████ MASTERED ✅

Chord Transitions ████████████ MASTERED ✅

Fingerpicking ████████████ MASTERED ✅

Song Structure ████████████ MASTERED ✅

Dynamics ████████████ MASTERED ✅

Number System ████████████ MASTERED ✅

Barre Chords ████████████ MASTERED ✅

Power Chords ████████████ MASTERED ✅

Hammer-Ons & Pull-Offs ████████████ MASTERED ✅

Slides & Bends ████████████ MASTERED ✅

Vibrato ████████████ MASTERED ✅

Palm Muting & Percussion ████████████ MASTERED ✅

Lead Guitar Basics ████████████ MASTERED ✅

Pentatonic Scale ████████████ MASTERED ✅

Major Scale ████████████ MASTERED ✅

Minor Scale & Modes ░░░░░░░░░░ LOCKED — Lesson 21

🎸 Lesson 20 Complete! XP Earned: +500 — You are now one step closer to playing Clocks by Coldplay.

Next up: Lesson 21 — The Minor Scale and Modes: Unlocking Every Sound 🎸