For the diversity of arts maybe. Because he feels like it.
It is called no representational
Eliott Carter was an American composer, whose personal harmonic and rhythmic language led to the invention of the term metric modulation. The latter describes frequent, precise tempo changes. In David Schiff's book "The Music of Elliott Carter", it is written that Elliott Carter preferred to call it tempo modulation.
<span>A mastaba is a type of ancient Egyptian tomb in the form of a flat-roofed, rectangular structure with inward sloping sides, constructed out of mud-bricks or stone.</span>
<span>The houses they occupied were made of bricks and had no foundations. The bricks were made of mudand chopped straw, molded and dried in the hot Egyptian sun.</span>