How can a combination of shapes create the illusion of volume?

A line completely surrounding space creates something that a line dividing space does  not which in turn creates potential effects that nothing else can.

Variations of geometric shapes compose all buildings, works of art, and

the human body.

Shapes project the moods of the types and directions of lines enclosing

them and the space within them.

this is a experment where you actully have to do the work like go take some photos in something your interstid in

12-bar blues chorus = a a b