When environment changed , Art changed.

"man is only consciously aware of the environment that has preceded it; in other words, an environment becomes fully visible only when it has been superseded by a new environment; thus we are always one step behind in our view of the world. Because we are benumbed by any new technology--which in turn creates a totally new environment--we tend to make the old environment more visible; we do so by turning it into an art form and by attaching ourselves to the objects and atmosphere that characterized it, just as we've done with jazz, and as we're now doing with the garbage of the mechanical environment via pop art."-- The playboy interview to Macluhan.

This sentence inspired me that the changes of environment is visitationed by new style art form. Art form is a kind of "test paper" for man's perception.Such as new age music.http://www.youtube.com/watch?v=ioIO1BZfyvs&feature=related