# Shapes & positions

Movable bass shapes (root–fifth, root–octave, major boxes, minor pent boxes) and 4-fret hand positions — like guitar boxes + ukulele position walks, without CAGED.

## Lab
`shapes.html` — pick system → shape → Play walk. Mute unused strings.

## Rules
Start fret = position. Stay in the box. Shift the whole hand. Mute hard.

## Practice
Drills · positions · Exercises · shape tours · apply with Write grooves.