We couldn't see CP2077 E3 demo but somebody recorded audio from the presentation so we can hear VA, OST and audio in general. So if you want enjoy listening Cyberpunk 2077 E3 Demo ;D
Source
https://www.dsogaming.com/news/cyberpunk-2077-e3-2018-demo-has-been-leaked-in-audio-format/
Direct links:
Part 1
Part 2
Source
https://www.dsogaming.com/news/cyberpunk-2077-e3-2018-demo-has-been-leaked-in-audio-format/
Direct links:
Part 1
Part 2