Ключевые слова: abstract, amphitheater, art, attendance, audience, auditorium, blue, building, carcassone, center, color, concept, cover, crowd, cultural, curve, design, empty, event, fractal, full frame, gradient, great, host, in line, in order, in row, lake, large group of objects, layers, levels, light and shadow, metal, mob, music, opaque, open, order, performance, recurrence, repeat, repeatability, seats, seats in row, shadows, spectator, stage, theater, theatre, tourism,