What is the term for simultaneous silence in all instruments?

ANSWER: Impact Rest or Music Rest

EXPLANATION: An Impact Rest or Music Rest is an interval of silence during a music. These are marked by symbols which also indicates the duration of the pause. Each rest symbol and name comes with a note value for length which is the how much the silence should be taken.

in this piece, the rectangles, the vertical and horizontal lines, and lack of hue create a sense of harmony. there is balance and proportion because although the rectangles are different, no one rectangle overpowers the others, and the size relationship among the rectangles is agreeable to the eye. there is a sense of movement and depth, through the use of shading and shadowing. it almost appears like some of squares are popping out. there is variety created by the different rectangle sizes, the shading, and the shadowing.

aka im the smartest of them all