Introduction
When I first joined my high school jazz band, it was a humbling experience.
I knew my major scales and modes, but only with the roots on the E and/or A string. This worked fine for playing pop music, but the way jazz progressions were always changing chords with each measure, my hands were constantly getting lost.
If I was playing a C major line in eighth position, how did I switch to a Bb mixolydian scale without jumping my hand up or down and making the improvisational idea totally disjointed ?
I could never understand how jazz guitarists could keep their ideas going as the chords changed from moment to moment.
And how did players like Joe Pass know how to run an improvised line right into a chord voicing?
Additionally, as I progressed to the higher registers of the guitar, I could never tell where I was in the scale anymore. It seemed impossible!
This problem continued for me until I discovered Will Leavitt’s book, A Modern Method For Guitar.
In this master work, the author breaks down a total of nine different fingerings for each scale.
After working through the books, I found myself completely able to find my way around a scale anywhere on the neck and easily select the next scale shape for whatever chord was upcoming.
His method is an advanced application of the idea that we can move common open triad shapes (cowboy chords) up the fretboard and build scales, arpeggios and chords voicings around each.
This concept is commonly called the CAGED method.