Entiende por fin el diapasón.
Stop memorizing shapes.
La mayoría de los guitarristas memorizan formas. Muy pocos entienden por qué funcionan.
Este es el sistema visual que convierte el diapasón de algo aleatorio en algo obvio — para que puedas componer, improvisar con intención, tocar de oído y por fin entender lo que tocas. Sin partituras. Sin piano. Sin teoría previa.
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."
Así lo enseñan la mayoría de los libros de teoría. Arrastra para descubrir una forma mejor.
Arrastra el control y descubre por qué más de 200.000 músicos prefieren Guitarra: teoría simplificada.
¿Atascado con un concepto? Escanea y mira.
Cada capítulo incluye códigos QR impresos en la propia página.
Sin app, sin registro.

Mira exactamente cómo enseña el libro.
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.
Nivel
Sabrás si un capítulo es de nivel principiante, intermedio o avanzado antes de empezar.
Tiempo necesario
La mayoría de los capítulos llevan de 1 a 3 horas, así que aprendes a tu ritmo.
Objetivo claro
Cada capítulo empieza diciéndote lo que sabrás hacer al terminarlo.
123456Lo que aprenderás
Mira exactamente qué conceptos y habilidades cubre el capítulo.
Lo que necesitarás
Sin sorpresas. Cada capítulo te dice exactamente qué herramientas usarás.
Sáltalo si ya lo sabes
¿Ya lo dominas? Salta adelante y céntrate en lo que no sabes.
Un sistema de aprendizaje completo.
Guías de jerga. Chuletas visuales. Videolecciones con QR. Todo lo que necesitas para entender por fin la teoría musical.
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 Fundamentos del piano
02 Fundamentos de la guitarra
03 Tonalidades y escalas
04 Armonía: intervalos y acordes
05 El sistema CAGED
06 Progresiones de acordes
07 Notación musical
08 Ritmo y compás
09 El círculo de quintas
Mira cómo el diapasón pasa de aleatorio a obvio.
Toggle below to see the difference between how most guitarists see the fretboard — and how you'll see it after the Harmony chapter.

El diapasón parece aleatorio.
Aprendes una forma de acorde. Luego otra. Olvidas cuál es cuál.
132 notas sin relación que memorizar una a una.

El diapasón es un patrón.
Cada acorde es fundamental + 3.ª + 5.ª en distintas posiciones.
132 notas se convierten en un solo sistema que aplicas en todas partes.
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.
El libro
183 páginas para pasar de «¿qué es un acorde?» a «puedo escribir cualquier progresión».
La alfombrilla
La chuleta está bajo tus manos todos los días. La teoría se convierte en memoria muscular.
Las pegatinas para diapasón
Traslada el sistema de notas a tu mástil. Entrena la vista mientras tocas.
El póster de pared
Escalas, intervalos y el mapa CAGED, siempre en tu campo de visión.
Pick your edition.
Start understanding tonight.
El libro — PDF
- 183-page PDF · all 9 chapters
- QR video tutorials included
- Searchable, any device
- 30-day refund
El libro — edición impresa
- Full-color paperback (183pp)
- QR video tutorials included
- Worldwide tracked shipping
- 30-day refund
Edición completa
- Full-color paperback (183pp)
- Instant PDF (read tonight)
- QR video tutorials
- Worldwide tracked shipping
- 30-day refund
El pack Dominio de la guitarra
- 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.
Deja de memorizar formas. Empieza a entender la música.
Un sistema visual creado para guitarristas autodidactas.










Tabla de acordes de guitarra (archivo PDF)
Teoría de la Guitarra Simplificada (Tapa blanda/PDF)
Alfombrilla de ratón con hoja de trucos de teoría de bajo eléctrico
Teoría del Bajo Simplificada (Tapa blanda/PDF)
Teoría Musical Simplificada - (Tapa blanda/PDF)
Alfombrilla de ratón Hoja de trucos de teoría musical
Teoría del Ukelele Simplificada (Tapa blanda/PDF)
Alfombrilla de ratón con hoja de referencia de Teoría del Ukulele
Alfombrilla de ratón con chuleta de teoría de la guitarra
Hoja de trucos para mezclar y dominar Alfombrilla de ratón

