Comprends enfin le manche.
Stop memorizing shapes.
La plupart des guitaristes mémorisent des formes. Très peu comprennent pourquoi elles fonctionnent.
Voici le système visuel qui rend le manche évident au lieu d’aléatoire — pour composer, improviser avec intention, jouer d’oreille et enfin comprendre ce que tu joues. Pas de partitions. Pas de piano. Aucune théorie préalable requise.
Most guitarists memorize shapes.
Very few understand music.
You can play. You know your open chords. Maybe a pentatonic scale. But you can't explain why any of it works — and that's the wall that stops most guitarists from ever becoming musical.
Memorized shapes.
You can play songs. You remember chord grips. You know a few scale boxes. But if someone asks you to play in a different key, you freeze — because you don't know why the shapes work.
- Can't transpose to a new key
- Can't write your own progressions
- Can't follow what other musicians say
The language behind them.
Once you see why a chord is built the way it is, the shapes stop being random. They become a vocabulary you can speak fluently — in any key, anywhere on the neck, in any musical situation.
- Move freely between any key
- Write progressions intentionally
- Speak the language of music
Music theory wasn't hard.
The explanations were.
Most theory books were written by classically-trained pianists for conservatory students. They assumed you read sheet music. They used Italian terms. They asked you to memorize forty modes before you'd written a single song.
That format wasn't built for self-taught guitarists who learn by seeing, hearing, and playing. The information wasn't wrong — the delivery was.
"I started in 2008 with a MIDI keyboard and FL Studio, no theory. From 2010 to 2015 I taught music production on YouTube as MellaMayne — but I still couldn't really play the guitar. Years later, after my first book (Music Theory Simplified, for piano) found readers, I wrote the guitar version I wish I'd had at the start."
and start seeing it on the fretboard."
Voilà ce qu’enseignent la plupart des livres de théorie. Fais glisser pour découvrir une meilleure méthode.
Fais glisser le curseur pour voir pourquoi plus de 200 000 musiciens préfèrent Guitare : la théorie simplifiée.
Bloqué sur une notion ? Scanne et regarde.
Chaque chapitre contient des codes QR imprimés directement sur la page.
Pas d’appli, pas de connexion.

Découvre exactement comment le livre enseigne.
Explore real chapters and flip through actual pages from Guitar Theory Simplified.
Every chapter tells you
exactly where you're going.
No fluff. No wasted time. Each chapter is structured to help you learn faster, stay focused, and actually understand.
Niveau
Sache si un chapitre est débutant, intermédiaire ou avancé avant de commencer.
Temps nécessaire
La plupart des chapitres prennent 1 à 3 heures, pour que tu apprennes à ton rythme.
Objectif clair
Chaque chapitre commence par te dire ce que tu sauras faire à la fin.
123456Ce que tu vas apprendre
Vois exactement quels concepts et compétences le chapitre couvre.
Ce dont tu as besoin
Pas de surprises. Chaque chapitre te dit exactement quels outils tu vas utiliser.
À sauter si tu connais déjà
Déjà à l’aise ? Passe à la suite et concentre-toi sur ce que tu ne sais pas.
Un système d’apprentissage complet.
Guides du jargon. Aide-mémoire visuels. Leçons vidéo par QR. Tout ce qu’il te faut pour enfin comprendre la théorie musicale.
183 pages.
9 fundamental concepts. One connected system.
Every chapter builds on the last. Each one includes visual diagrams, a cheat sheet, a jargon guide, and a QR code linking to a video tutorial. Click any chapter to see what's inside.
01 Les bases du piano
02 Les bases de la guitare
03 Tonalités & gammes
04 Harmonie — intervalles & accords
05 Le système CAGED
06 Progressions d’accords
07 Notation musicale
08 Rythme & mesure
09 Le cycle des quintes
Regarde le manche passer d’aléatoire à évident.
Toggle below to see the difference between how most guitarists see the fretboard — and how you'll see it after the Harmony chapter.

Le manche semble aléatoire.
Tu apprends une forme d’accord. Puis une autre. Tu oublies laquelle est laquelle.
132 notes sans lien à mémoriser une par une.

Le manche est un motif.
Chaque accord, c’est fondamentale + tierce + quinte dans différentes positions.
132 notes deviennent un seul système que tu appliques partout.
The book that finally made theory click
for thousands of self-taught guitarists.
After 12 years, the fretboard finally makes sense.
Two weeks in and I'm writing my own progressions.
I can finally jam without freezing.
Real photos from real readers.
Understood the fretboard in 2 days.
I'm not exaggerating. Chapter 4 broke down what every other book skipped.
10 years playing. Modes finally make sense.
The Keys & Scales chapter showed me modes as colors instead of seven random shapes. Mind blown.
Best gift I've ever given my son.
Three weeks later he's writing his own riffs and explaining theory to me. The QR videos are gold.
Wrote a full song in one weekend.
The Chord Progressions chapter and the Roman numerals system is pure gold. Bought the mousepad too.
Bridged piano theory and guitar in a weekend.
As a producer who only knew theory on piano roll, this book finally got me playing it on guitar.
The QR videos made the CAGED chapter click.
Was stuck on CAGED for 20 minutes, scanned the code, watched the 2-min video, instant clarity. Best theory book I've bought.
I'm 56 and finally feel like I understand guitar.
Wish I had this 30 years ago. The Harmony chapter alone was worth twice the price.
Finally a theory book that doesn't feel like school.
I'd given up on theory three times before this. The 'why' explanations finally clicked. Now I'm writing songs again.
I keep it on my amp every practice session.
Lives on top of my amp. Open it, scan a QR, learn one concept, jam. Repeat. Best $25 I've spent on guitar.
Mi nueva biblia de teoría.
Por fin un libro de teoría que entiendo. Los códigos QR con los videos de Melvin son oro puro.
Worth every cent of the investment.
Clear writing, no fluff, immediately useful. The CAGED system finally clicked after years of trying.
Wish someone gave me this 10 years ago.
I'm an acoustic fingerstyle player and theory always felt out of reach. This book made modes feel obvious.
Hear it from guitarists
who've been through it.
Unedited videos from readers about their experience with the book. The good, the honest, and the "I wish I'd found this sooner" moments.
One transformation.
Four tools.
The book teaches the framework. The companions make it stick.
Le livre
183 pages pour passer de « c’est quoi un accord ? » à « je peux écrire n’importe quelle progression ».
Le tapis de souris
L’aide-mémoire est sous tes mains tous les jours. La théorie devient de la mémoire musculaire.
Les autocollants pour manche
Reporte le système des notes sur ton manche. Entraîne tes yeux pendant que tu joues.
Le poster mural
Gammes, intervalles et la carte CAGED — toujours dans ton champ de vision.
Pick your edition.
Start understanding tonight.
Le livre — PDF
- 183-page PDF · all 9 chapters
- QR video tutorials included
- Searchable, any device
- 30-day refund
Le livre — broché
- Full-color paperback (183pp)
- QR video tutorials included
- Worldwide tracked shipping
- 30-day refund
Édition complète
- Full-color paperback (183pp)
- Instant PDF (read tonight)
- QR video tutorials
- Worldwide tracked shipping
- 30-day refund
Le pack Maîtrise de la guitare
- Paperback + instant PDF
- Cheat sheet mousepad
- Fretboard stickers
- Wall poster (24″×36″)
- 30-day refund
Accessories for your Guitar Theory book.
64% of readers added at least one. Bundle & save up to 25% — plus unlock free gifts at €35 and €55.
From confusion
to fluency.
This isn't about adding more information. It's about how you experience the guitar from this point forward.
- Memorizing chord shapes
- Stuck in two positions on the neck
- Noodling without direction
- Confused when musicians talk theory
- Writing progressions that "sort of work"
- Freezing when someone calls a key
- Writing songs that actually sound the way you want
- Playing songs by ear instead of hunting for tabs
- Improvising with intention, not luck
- Learning new songs faster by recognizing patterns
- Jamming confidently in any key, anywhere on the neck
- Finally understanding what you're playing — and why
What makes this different from free YouTube tutorials?
YouTube teaches isolated tricks. This teaches a connected system.
I'm a complete beginner. Is this too advanced for me?
No. The book starts with zero assumptions.
I've tried theory before and it always felt overwhelming. Why will this be different?
Because most theory is taught as abstract concepts on paper.
Do I need to read sheet music or know piano?
No. Everything is taught visually on the guitar fretboard.
Does it work for acoustic and electric?
Yes. The fretboard layout is identical.
What if it doesn't help me?
30-day full refund.
What's the difference between the PDF and the paperback?
Content is identical. The PDF is instant; the paperback ships.
How long does shipping take?
Physical orders are processed within 1–3 business days. Delivery estimates vary by destination and shipping service; see our Shipping Policy for current timings.
How do the QR codes work? Do I need internet?
Open your phone's camera, point at the code, watch.
I play left-handed / 7-string / drop tunings — does it still work?
Yes. Music theory is the same regardless.
How long does it take to finish the book?
No rush. Most readers take 8–15 hours cover-to-cover.
Can I get this if I'm in the EU? VAT & customs?
Yes — we ship worldwide. VAT included at checkout.
The same method, refined across five instruments.
Built on the same visual, plain-English approach that made Music Theory Simplified (the piano edition) a hit. Each book is independent — pick the one for your instrument.
Arrête de mémoriser des formes. Commence à comprendre la musique.
Un système visuel conçu pour les guitaristes autodidactes.












