A mapping system consisting of a set of diagrams delineating and identifying the diatonic arrangement of tones on the guitar fretboard based upon the principal of radial symmetry providing musicians with a way of finding notes on the guitar fretboard and understanding their diatonic relationships. These maps comprise several views of the diatonic system on the fretboard which take into account the varying position of the entire system of notes in each diatonic key. A framework of Zones and String Groups is laid out in a manner similar to a geographical map of the Earth which depicts the tones of each key as geometric configurations which are defined in terms of diatonic music theory.