The concert was a 'sonic' extravaganza. [=a very exciting and entertaining musical event]
(..) after midnight, it'll be a criminal offence to store any recording or images of the event. They're doing an announcement to warn people off even watching, some sonic tone that causes nausea. '..When public opinion has very much hardened, 'following the delivery of the princess's severed finger. (..)2011 TvShow: Black Mirror Title: The National Anthem Season: 1 Episode 1