Diminished Lattice

This pattern is made up of minor 3rds which form a kind of symmetrical lattice across the fretboard. In this instance the pattern begins and ends on G, but as long as the internal geometry is maintained, it can be placed anywhere on the fretboard.

Notice that there are two "phases" shown. Phase One spans from the 3rd to the 9th fret, and Phase Two covers the 9th to the 15th. Study both phases carefully. You'll see that they are identical in their structure, but because they cover different areas, they each have a different relationship to a given key.

Also notice that both phases combined completely cover an entire octave span, which would be the case regardless of the key.