A scale, an arpeggio and a chord are the same information at different densities. Scale boxes exist because we treat them as three separate libraries of shapes to memorise. Organise everything by intervals from a root instead and they collapse into one thing. That's what this book does. There are no fretboard diagrams in it, and only one thing to memorise. The whole system Find any root note anywhere on the guitar neck — two strings up, two frets up, plus one correction crossing the B string Read the map — three rows covering every interval relative to that root Apply a formula — major is 1-3-5, dominant seventh is 1-3-5-b7, and so on Play a formula simultaneously and it's a chord. Sequentially and it's an arpeggio. Fill the gaps and it's a scale. Any key, from any note, without a single memorised shape. What's inside Why scale shapes fail, and what a box actually is Finding any root note — the one thing in the book you memorise The interval map, read upwards and downwards, with drills that make it automatic Chord and scale formulas as numbers — enough to build a 13#11 without ever having seen one Building chords, arpeggios and scales from the same formula The two-note shortcut: third and seventh define almost any chord Guitar improvisation by targeting — roots, fifths, thirds, sevenths, then filling the gaps A thirty-day practice plan Troubleshooting for when it goes wrong Before you buy There are no fretboard diagrams in this book. Not one. That isn't an oversight — a diagram of an interval map defeats the purpose of an interval map. If you want pictures of where to put your fingers, this is the wrong book, and there are plenty of good ones that do that. It's short. A pocket manual for the music stand, not a course to work through. If the fretboard really does reduce to one shape, one map and a list of formulas, a two-hundred-page book would contradict the claim. You'll play worse for about a month. Computing an interval live is nothing like recalling a picture. That's in the book too, because it's where most people quit. Who it's for Intermediate and advanced guitarists who can already get around the instrument and suspect their improvising is more retrieval than invention. If you bought Wayne Krantz's An Improviser's OS or Mick Goodrick's The Advancing Guitarist and never finished either, this is the book that gives you a way in. It's stand-alone — you don't need anything else I've written, though it does assume you know what an interval is. One test, if you want to know whether you need this: play a phrase you like, then play it somewhere else on the neck. If it survives the move, you know a phrase. If it doesn't, you knew a fingering.
