When a work of art such as Kasimir Malevich's Suprematist Painting, Black Rectangle, Blue Triangle shows no reference to the natural world of images, it is usually called:

Nonrepresentational art

Explanation:

Nonrepresentational art is a piece of work that does not show us any figure or real-world element. It’s a form of abstract art parting with the artistic tradition of presenting real-world factors on the art.

Rather than that, the kind of nonrepresentational art which Kasimir Malevich produced leans towards the exploration of color, space, techniques, and emotions. Through the simple display of the color and the reduced form that has no connection to reality, artistry to awake some emotions and ideas in the observer.

this musical excerpt is an example of piano volume. (true) !

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