Is the Guitar Fretboard a Mystery to You?

Tired of the hunt-&-peck, trial-&-error, random YouTube approach?


Are you beginning to think there must be a better way?

  • How about the latest cool song that you’re into? Can you figure it out on your own or do you have to laboriously work through a tab chart you got online that you hope is correct? (It’s probably not.)

  • Have you ever sat in a music theory class wondering what the rules of the four-part Bach chorale style have to do with the guitar?

  • Have you ever heard some awesome guitarist play and wondered how anybody could know so many chords?


  • Or what bizarre scale is he using that sounds so cool?

  • Do you understand this symbol? 

- or does it look like some kind of calculus problem?

My name is Jay EuDaly and I've been a professional, full-time guitarist for over 50 years. My method, Vertical Truth: Chordal Mechanisms for the Guitar, can help you remove the mystery.

What makes my method any different from the plethora of guitar education websites out there peddling guitar lessons? Well, if you really want the complete answer to that question, read A Little Story. It will give you the detailed history of this unique, time-tested & proven method, and why I am the guy to lead you through it.

The short answer is that this method takes you step-by-step through about 1,000 years of music theory evolution and APPLIES IT TO THE GUITAR. As a result of doing this - not just understanding, but DOING - many things happen automatically;


  • you gain a complete understanding of the guitar fretboard,

  • you learn how to think about music and the guitar, 

  • you develop good technique and

  • you train your ear 

 - to name just a few things that happen organically as you work your way through this method.

You can then apply your knowledge


To get started, take these first few steps: 

  • Become a Master Guitar School site member - it's free. You will then have access to dozens of free lessons in the "Members Only" area of the website. You will also receive the Master Guitar School Newsletter. Most of the monthly newsletters contain a free lesson. Members are also periodically offered first access and deep discounts (50% or more) on new lesson series downloads when they are first published. For more information go to:


Why Become a Site Member?


  • Master the first 2 Major Scale patterns given here. There are 6 Major Scale patterns given in this lesson but only the first 2 are required to get started. 

  • Communicate with me. Let me know what you'd like to see as far as lessons go. My agenda is to rewrite and format my method book, Vertical Truth: Chordal Mechanisms for the Guitar, into PDF/video downloads. That process is underway. You can see what's currently available in the column to the right (or below if you're viewing this page on your phone). I'm also open to doing one-off lessons on any guitar-related subject you want, in any format you want (video, PDF, webpage etc.).

  • Read the Blog. Blog categories include: Free Lessons, Technique, Music Theory, Stories, Philosophy, Questions and Answers, Rants and Musings, Product Announcements, Gear and more!

The guitar has been a Grand Obsession of mine for over 50 years. I love everything about it. I've been a full-time professional performing musician since the early seventies. I've taught 50-100 personal students a week since the early eighties.


I know what it takes to play, teach and learn. I'm passionate about playing as well as helping people obtain the priceless value that I've received from music and the guitar.

Is the guitar fretboard a mystery to you? 

I can help.


Lesson Downloads

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The Process

Reasons to Study Guitar

Latest Blogs

2021 News

April 5, 2021: Blog: The Phrygian Distinctive: Backdoor into the Phrygian sound from the Minor Pentatonic scale. It’s easy! Just add a single note...

March 29, 2021: Blog: Loft Jazz: Not for Everybody: This was community music. Part of the point was that, free of the strictures of clubs, the music could be anything, go anywhere, go on for as long as it wanted.

March 22, 2021: Blog: The Value of the Avant-Garde: ... avant-garde music reveals and causes you to question your unconscious presuppositions about what it is that constitutes music. It's provocative and challenging, sometimes offensive. If you have to ask, “Is that music or noise?” - then it's performing its basic function.

March 15, 2021: Blog: Legato/Staccato: Have you ever listened to a guitarist play and marveled at how “smooth” or fluid his solos sounded? Are you struggling to achieve that in your own playing? I can help you with that.


March 10, 2021: March Newsletter: Going Modal: Lesson 2. Trust me, I can get you to a functional, guitar-friendly understanding of modes - if you follow me, step-by-step and TRUST THE PROCESS! - March Newsletter: free lesson, new product announcement, blog links and more!


March 1, 2021: Blog: Jam Tales: Haji Ahkba: Haji Ahkba is a trumpet/flugelhorn player who has done extensive work as a sideman with James Brown (where he’s credited as George Dickerson) as well as Van Morrison. Along with Van Morrison he was on the cover of Morrison’s 1997 Album, “The Healing Game.” He’s gigged with Little Milton, Bobby Blue Bland, BB King, Eddie Harris, Pony Poindexter, Stanley Turrentine, Barry Harris, Sun-Ra, Lou Donaldson, Archie Shepp and many more. Sometime in the spring of 2004 Haji showed up at the Saturday Afternoon Jam at Harlings. At the time, I didn't know who he was. I found out soon enough!

February 22, 2021: Blog: A Rare 9th Voicing: This 9th voicing, especially from a 6th-string root, is known and used among more advanced players but rarely known by most guitarists.

February 15, 2021: Blog: You're Not Doing Social Media Right! This blog is not a Guitar Lesson, Theory Lesson, Technique Tip or a Jam Tale. It's more of a rant and about being transparent concerning my business model and practices.


February 9, 2021: February Newsletter: Confused by modes? New FREE lesson series to Site Members! Plus blog links, new product announcements and more!


February 1, 2021: Blog: Quick & Dirty Altered Dominants: A quick guide to altering 5ths and 9ths of Dominant 7 Chords.


January 25,2021: Blog: The Aeolian/Dorian Distinction: Back-door into modes from the Minor Pentatonic Scale. No confusing modal theory necessary. What do you want to sound like? What do you want to feel? What color is it?


January 18, 2021: Jam Tales: The Incredible Flying Mic. This story is about singer Jim LaForte. He had one of the most authentic R&B voices of anyone I've heard. A whole book could be written about him; he was one of those characters who was surrounded by chaos and drama, most of it his own doing.


January 13, 2021: January Newsletter: FREE lesson on the Minor Blues, blog links and more!

January 4, 2021: Blog: Quick & Dirty 9th Chords: In this installment of “Quick & Dirty” we’re going to deal with 3 types of 9th chords. A 9th can be added to anything but most commonly it’s added to Major 7 (Cmaj9), Dominant 7 (C9) and Minor 7 (C-9) chords.

Become a MasterGuitarSchool Site Member (sign-up is FREE!) to Access the "Members Only" Area for Free Lessons and Other Offers and Events!

Visit Jay EuDaly's main website:
Master Guitar
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Guitar Lesson Downloads, Guitar Lesson Videos, Online Guitar Lessons, Personal Guitar Lessons, Skype Guitar Lessons, Guitar Method Books,  Music Theory, Vertical Truth - Chordal Mechanisms for the Guitar

© 2013 by Jay EuDaly