Ключевые слова: area, assembly, audio, background, backstage, band, boxes, bright, business, concert, construction, control, design, effects, empty, entertainment, equipment, event, festival, guitar, illumination, industry, led, light, modern, music, musical, okean elzy, outdoor, performance, preparation, production, rock, rock group, scene, show, sound, speakers, stage, studio, technology, theater, transportation,