Ключевые слова: arts, audience, auditorium, band, business, communications, concert, conference, disco, discussion, education, electric, empty, entertainment, equipment, event, hall, lecture, lights, listening, media, microphone, music, musical, musician, orange, performance, performing, podium, pop, popular, presentation, public, recording, rehearsal, report, revival, rock, singer, singing, sound, speaker, speech, stage, studio, talking, technology, voice,