1-3 · Fretboard Knowledge: The "Warp," Octaves, and the Minor Pentatonic Stack

Get the fretboard knowledge that makes the rest of the module click. You'll learn the movable octave shape (two strings and two frets up), then the "warp" — the dividing line between the G and B strings where standard tuning narrows to four frets, shifting any pattern that crosses it one fret toward the bridge. That sets up the minor pentatonic "stack": the compact six-note shape, well worth memorizing, that you'll picture and play all over the neck, with its root the higher note on the middle string.