Guitar Neck Diagram
a: Width of the neck at the nut
b: Width of the neck at the first fret
c： Thickness of the neck at the first fret
d: Thickness of the neck at the twelfth fret
Radius: Radius of the fingerboard
With the bass held in the playing position, from the end of the body towards the direction of the neck, the controls are, tone, bridge pickup volume, and neck pickup volume.