I'll go down, see for myself and report back. The Music and Club/Event industry is full of mostly intelligent, peaceful people who I doubt would escalate it into anything more than a peaceful demonstration.
My concern is if the protest also has gatherings of people outside of these industries who are just there to make a noise and get in on the action who could become a further misrepresentation to the media (who will undoubtedly be watching it eagerly) of the potential violence they're moving to avoid with these legislative changes.