13. Description of the core message of your event and key topics to be covered (c.100 words):
Come and join the Newcastle University Street Scientists, Framwellgate School buskers and others to create a giant Flashmob Orchestra at Monument to celebrate the end of the 2013 British Science Festival. Make your own glove-a-phone, drinking straw kazoo or other musical improv. instrument, and learn more about the science behind sound!