Grid layout
The drawing is a vertical neck: six string lines, low E on the left through high E on the right, with horizontal fret lines below the nut. A fret pattern like x32010 assigns one symbol per string: x mutes it, 0 leaves it open, and a digit presses that fret. Pressed frets get a filled dot with a finger number; open and muted strings get o and x markers above the nut.