Clip: Play notes of the Key Circle – recite names:
In general my concept for applying music theory to the guitar neck involves learning everything in two positions with at least two octaves in each position.
You must memorize the Key Circle as applied to the 6th and 5th strings, everything depends on it!
These are visualized from a root note on the 6th string and a root note on the 5th string.
The Key Circle is used to memorize the names and locations of roots on the 6th and 5th strings.
Going counter-clockwise around the circle (cycle of 4ths) is very applicable to the guitar because the 6th and 5th strings are tuned a 4th apart.
All chords, scales, blues patterns, arpeggios, and everything else are learned from a 6th string root and a 5th string root.
You must memorize the Key Circle as applied to the 6th and 5th strings, everything depends on it!