The Sound Horizon official website recently released the details of the celebration of the 10th Anniversary, which is on the 27th of October 2014 (day of the release of Elysion – Prelude to Paradise).
In a similar way to the celebration of the 5th Anniversary on 2009, this event will again be only for members of the Sound Horizon fanclub, Salon de Horizon.
The celebration will span over 2 days (26th and 27th), and three events: A day event and a night event on the 26th, and a night event on the 27th.
There is no information regarding the event itself. However, the celebration of the 5th anniversary was similar to a “talk event”, in which Revo discussed Sound Horizon’s legacy with other people. The three events will happen in Shibuya, in a venue called “Shibuko” which can accommodate up to 2,000 people.