Ключевые слова: abstract, and, bill, blur, blurred, blurring, blurry, board, boards, bokeh, concert, concerto, crowd, crowding, crowds, during, effect, entertainment, gathering, head, heads, in, intentionally, lights, mass, multitude, note, of, onlooker, out of focus, outoffocus, pate, paying, people, performance, person, red, showmanship, spectator, spectators, stage, the, theater, ticket, viewer, with,