Or they could be defined by spare flourishes of nearly abstract line.

On the even numbered cards, the abstract curved lines are all that is present.

The voice seemed to come from a space where abstract lines curled in tight patterns, but I knew that was an illusion.

Composers take into account the reality of singing instead of creating an abstract line that can't be sung.

The loopy and amusing abstract lines he drew alluded to cats, boats, whatever.

Initially working along a somewhat abstract line, he soon turned towards a more realistic surrealism, only to later return to abstract art.

First, you had those abstract lines and the bright colors and the overture.

Turns out some people thought they were just pretty, abstract lines.

The abstract and asymmetric lines of the origami are introduced in the mall's the north, south and west facades.

It displays a smaller, flying bird connected to circles and abstract lines.