<span>Serigraphy, or more commonly known as, silkscreen printing, is when an image is transferred by forcing ink through fine mesh or silk. It's usually used to make logos, images, or characters on clothing, most commonly T-shirts. </span>
Serigraphy (or screen printing), also known as silk-screen printing, is a stencil-based printing process in which ink is forced through a fine screen to the substrate below it. The canvases were originally made of silk and, for this reason, the name of Greek origin - seri (silk) and spelling (writing or drawing).
Screen printing is used for printing mass production items such as t-shirts, posters and mugs. Today the canvas are made of finely woven polyester or nylon.
The thing that was heard before the armies then meet at the climax of so called the battle on ice in Alexander Nevsky would be a. a chorus singing a homophonic phrase. Hope this is the right answer and would be of help.