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THE GUITAR CHORD ENCYCLOPEDIA

Every chord a guitar can play
— strummed, tapped, or arpeggiated. Mapped, named,
and exposed.

The most complete study yet of how a single note transforms across the fretboard — root in one chapter, seventh in the next, ninth in another — one fret at a time. Fret 0: E. Fret 1: F.

The Monster Chord Book
TEN LANGUAGES

Read the theory in your own language

The full harmonic classification system — history, methodology, chord families, the extension compatibility matrix — translated in full. Pick one to start.

36 VOLUMES, ONE FRETBOARD

This is Volume I and II of a much larger map

Most chord books ask, “What chord is this?” This one asks, “I want this note on top — what chords can carry it?” Every volume fixes one note — the top note of the chord — on one fret of one string, then catalogs every chord that can carry it. Volume I, for example, covers the open first string (E). Do that for all twelve frets, on the guitar's first three strings, and you get 36 volumes covering more than 40,000 chords.

36
Volumes planned
40,000+
Chord voicings, complete
3
Strings, 12 volumes each

Unlike a traditional chord dictionary organized by root, every voicing here is organized by the top note you're actually playing — turning each chord into a working tool for chord melody, reharmonization, voice leading, and improvisation, not just a shape to memorize.

Volumes I and II alone already document 4,894 chords — from just 2 of the 36 planned volumes. At that pace, 40,000+ isn't a marketing number. It's arithmetic.

THREE YEARS, ONE PROJECT

Pere Soto has spent three years mapping this harmonic system fret by fret, by hand — no publisher, no grant, no institution behind it. The Monster Chord Book exists because one guitarist took on a personal challenge that, as far as he knows, no one had attempted before: a real, complete harmonic reference for the entire fretboard.

Publishing Volume I and II now is the next step. A project this size only continues if the people who use it help carry it forward — every purchase funds the research, notation, and verification work still ahead, including the volumes still to come.

It is also an invitation into the heart of the instrument in a way rarely attempted — not the easy parts, not the popular parts, but all of it. A pursuit that may never quite feel finished, because that is exactly where knowledge turns into wisdom, and craft into a lasting passion for music.

Founding-edition price

One payment. Access for life.

No subscription, no renewal. Pay once and every volume already published — and every one still to come — is yours to keep.

  • All published volumes, every chapter, every voicing
  • Harmonic analysis, hybrid chords, and inversions included
  • All ten language editions of the theory
  • Every future volume added at no extra cost
Lifetime access
$19.99USD
or €19.99 — one-time payment
This is the founding-edition price. Once Volume III is published, lifetime access rises to $25 / €25. Buying now locks in today's price forever.
Enter the encyclopedia
TRY BEFORE YOU BUY

Two chapters, on the house

One chapter from Volume I and one from Volume II are free to explore in full — no payment, no sign-up.

VOLUME I · FRET 0

Chapter I — E Chords

598 voicings rooted on E, fully analyzed: harmonic families, hybrid chords, poliacordes, and hand-verified inversions.

Open the free chapter →
VOLUME II · FRET 1

Chapter I — F Chords

Rooted on F — free to read in full while we finish reviewing Volume II.

Open the free chapter →
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Questions, or interested in lessons?

Whether it's about the encyclopedia, the theory behind it, or booking a lesson with Pere directly — send a message below.