Every single night from the 9th of july to the 11th of august you will be able to shake in an awesome atmosphere at the burgtheather vestibul.
Two large parties (19th of july and 9th of august): http://www.impulstanz.com/social/2013/parties/
You will probably be able to find me there every night with some friends. Just take some beer and relax outside, and when in the mood to dance just go in and shake. No entrance at the vestibul events. :D