Foundation Course on Guitar Theory

The Foundation Course on Guitar Theory will give you a brief introduction to the number system and how it is used on the guitar. This number system is the basis for all guitar theory, and understanding it is the key to taking your playing to the next level.

In addition, I’ve included a handy cheat sheet (it’s the last page in the course) which will show you at a glance the chords that are used in the five most common keys you’ll run into on the guitar.

Tip: I recommend printing off this page and keeping it with your guitar for handy reference.

Right click the link below and select Save Target As

Click Here to Download The PDF Course

Note: You will need Adobe Reader to properly view this PDF file. You can download that for free here, if you don’t have it already.

This foundation course is intended to be an introduction to some of the concepts that I explain in the Unlocking I IV V guitar lesson.

Here’s what others are saying about the course:

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Hello Jonathan,

I went thru your I-IV-V dvds. You know, I’ve picked up the guitar a few years back, after a 40 year hiatus, and started taking lessons from some local guys. They’ve been trying to teach me the same things, but haven’t been nearly as effective as your presentations. I sort of knew the concepts but was still kind of fuzzy because my local teachers were not presenting the material in a way that made sense to me.

Your presentation, though sort of “low-tech” with the markers and white board instead of Powerpoint, I believe was much more effective, probably because you took a lot of time to present the material, which allowed it to sink in better. Hooray for low tech!! I am a big fan of the KISS theory!

Anyway, I look forward to getting your weekly updates. You are clearing up a lot of questions I’ve always had about the guitar.


~ Bill Chwala
Edgerton, WI
Mechanical Engineer (Retired)

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In trying to define the value your basic course in fret knowledge provided, my first thought was, I don’t know the full value yet. This eye opening, easily understood, basic understanding is like turning on a light switch in a dark room. What that light has helped me find already is amazing, and what’s still in the dark room yet to be discovered is just a matter of time and effort.

The more I look at what I’m doing the more I see why it all works. I can’t say it enough how worthwhile this simple course has been. I have never gotten so much for so little before. A value that delivers a one time benefit is all well and good, but a value that continues to deliver forever is truly hard to find.

Your lesson has given me a challenge I desperately needed. It may well prove to be a life saver of sorts… a sanity save for sure. All for under 30 bucks…. quite a bargain.

~ Tim Sommer
Wyandotte, Michigan
Low Voltage Electrician

Curious to know what they’re talking about?

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