Ключевые слова: attending, audience, auditorium, band, camera, cell, club, concert, conference, corporate, crowd, device, digital, electronic, entertainment, event, fan, festival, hand, hands, holding, light, live, meeting, mobile, music, musician, night, nightclub, outside, party, people, performance, phone, photo, picture, public, record, recording, show, silhouette, smart, smartphone, social, stage, stream, streaming, video,