Lessons

Guitar Theory
& Technique

Practical guides covering scales, chords, intervals, and fretboard theory. Each one connects to an interactive tool so you can read the explanation and try it straightaway.

37Lessons
5Categories
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Scales

Learn the scale patterns that form the backbone of guitar improvisation and melody.

Guitar Scales

8 min readBeginner

Covers the major, minor, pentatonic, blues and modal scales

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Minor Pentatonic Scale

10 min readBeginner

The most important scale for rock and blues. Features 5 positions, licks, and soloing tips.

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Major Scale

8 min readBeginner

The foundation of Western music theory. Includes modes, harmonisation, and application.

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Blues Scale

8 min readIntermediate

Add the b5 'blue note' to your pentatonic playing for authentic blues expression.

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Natural Minor Scale

12 min readBeginner

The seven-note Aeolian mode behind rock, metal, and classical music. Diatonic chords, relative major, and how it differs from harmonic minor.

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Harmonic Minor Scale

10 min readAdvanced

The dramatic neoclassical scale; raised 7th, augmented 2nd, used by Yngwie Malmsteen and Bach alike.

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Melodic Minor Scale

10 min readAdvanced

Minor with raised 6th and 7th ascending; the jazz and fusion player's essential scale.

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Dorian Mode

12 min readIntermediate

Minor with a raised 6th; the jazz and funk mode behind Santana, Miles Davis, and countless minor 7th grooves.

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Mixolydian Mode

12 min readIntermediate

Major scale with a flat 7th; purpose-built for dominant 7th chords, blues, and classic rock riffs.

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Phrygian Mode

10 min readIntermediate

Dark, Spanish-flavoured mode built on the ♭2. The sound of flamenco and heavy metal.

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Lydian Mode

10 min readIntermediate

Major scale with a raised 4th; dreamy, cinematic, the brightest of all modes.

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Guitar Modes: Complete Guide

18 min readIntermediate

All seven modes of the major scale (Ionian through Locrian) with interval formulas, sounds, genre uses, and how to improvise with each.

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Pentatonic Scales: Master Guide

20 min readBeginner

Major and minor pentatonic in full; all five positions, connecting positions, blues application, and practical improvisation technique.

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Guitar Scales Learning Path

12 min readAll levels

Every essential scale grouped by difficulty, from minor pentatonic to advanced modes and jazz scales, with interactive fretboard links.

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Chords

Build a complete chord vocabulary from open shapes to moveable barre chord forms.

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Fretboard Theory

Understand the logic of the fretboard including note names, intervals, and how music is constructed.

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Theory Tools

Interactive tools for exploring scales, chords, and key relationships.

Key Explorer

5 minIntermediate

Select any key to see its notes, all seven diatonic chords with harmonic functions, relative key, and links to every related scale.

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Scale Finder

3 minAll levels

Select notes to find every guitar scale that contains them.

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Chord Finder

3 minAll levels

Pick notes to identify matching chords and their names.

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Circle of Fifths

5 minIntermediate

Interactive key signature reference. Click any key to explore its scale.

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Scale Comparison Tool

5 minIntermediate

Compare any two scales side by side; shared notes, interval differences, and how each one sounds over the same root.

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Interval Explorer

5 minAll levels

Visualise any interval across the fretboard, with a trainer mode to test your recognition speed.

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Triad Explorer

5 minIntermediate

Major, minor, diminished and augmented triads; root position, inversions, and string sets.

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Progression Explorer

5 minIntermediate

Enter any chord progression to detect the key, roman numerals, and scale suggestions.

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Voice Leading Explorer

5 minAdvanced

Animated voice leading between chords; see common tones, smallest movements, and smooth transitions.

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CAGED Explorer

5 minIntermediate

Interactive CAGED system; toggle positions, see how five shapes connect across the neck.

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Diatonic Chord Explorer

5 minIntermediate

All seven diatonic chords of any major or minor key with harmonic function and scale suggestions.

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Fretboard Layers

5 minIntermediate

Overlay scales, chords, pentatonics, and target notes on a single fretboard to see how theory connects.

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Shape Shifter

3 minBeginner

Move any scale pattern across all 12 keys; same fingering, different position. Animated key cycling.

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Practice

Structure your practice sessions to build real, lasting guitar skills.

New to guitar theory?

Start with these three in order. They cover the foundations you need for everything else.