Greetings and welcome to, a comprehensive training system for fret-board harmony, aural skills, and improvisation.

My name is Dan Cosley. I'm a guitarist and composer, and founder of the site. I've created WotG to help intermediate, advanced, and professional guitarists study the essential elements of musicianship on the guitar, comprehensively & efficiently.

As you know, the Internet is just bursting with information, but what is lacking is a system, that helps us efficiently train and master the fundamental building blocks that are common to all musical genres; that's what I've created here.

At the core of WotG are six in-depth video courses. These courses combine to form an integrated system, a 36-day training cycle.

The training cycle includes Scale & Interval Patterns, Triads, Pentatonics & Hexatonics, 7th Chord Arpeggios, 7th Chord Inversions, and Modes, in all 36 Major, Melodic Minor, & Harmonic Minor keys.

Hundreds of highly organized videos and PDF scores will train your hands, ears, and mind to recognize and execute these universal components of musical language. You'll also learn many concepts that will help you develop as an improviser.

Please sign up for our newsletter, to see how the course material is applied in "real-world" musical situations. I've created some useful (and free!) materials that I'm sure you'll find valuable.

Also, please take a look at the site tour video (below), which shows the content and features of the site in greater detail.

I look forward to personally engaging with you via the forums, and assessments, should you decide to progress along "The Way". 


- Dan Cosley, founder

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Instructor & Site Founder

Dan Cosley

Site creator, Dan Cosley M.M., is an internationally-distinguished musician who has won high praise for his virtuosic performances, eclectic compositions, & innovative arrangements. Dan has single-handedly built to share his knowledge of, and passion for, harmony & musicianship on the guitar. Explore Dan's compositions & recordings at
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Instructor & Site Founder

“Dan Cosley is a real, gifted musician with genuine skills as a composer. He belongs to a restricted community of guitarists who place music even above the guitar and that’s the main reason why I believe in him.” - Roland Dyens

“Exceptional qualities as a performer, scholar, and human being… Cosley is also a very talented and accomplished composer and improviser.” - Ricardo Iznaola

“Cosley has all the stuff.” - Marc Ribot

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