Watch the Guide Tone/Root Structures online guitar lesson by Brad Carlton from Guitar Lab: ii V I Options

This lesson combines these added voices on the second and first strings on top of the guide tone/root structures for each of the chords in the ii V I progression in the key of D. Diagrams 41 through 43 show the numerical analyses of these notes as they are added over each chord. Be sure to memorize these numbers as they will serve you in any key.