Ключевые слова: architecture, art, audience, auditorium, chair, classic, classical, concert, conductor, conference, congress, culture, education, empty, entertainment, europe, event, famous, group, hall, indoor, inside, instrument, interior, light, meeting, melody, modern, music, musical, new, nobody, opera, orchestra, performance, presentation, row, scene, seat, seating, seminar, show, sound, staff, stage, symphony, theater, traditional, violin, visual,