Pennards since 2007
Originally set up for Twitter users, this meet has expanded to include the Glasto Watch forum members, which includes a lot of Camp Triangle.
So, why the sound stage? The meet used to happen at the Brother's Bar, but the bar (which serves delicious flavoured pear ciders) was very popular, so it was hard to distinguish a #Twisto from a cider lover.
The sound stage is only 20m from that bar and several other non cider bars.