It looks like Momusu'16 concert will start at 7 or 8PM on Saturday according to the convention schedule--yesterday it said 8PM but when I checked just now, it says 7PM... (The convention schedule says that the main event begins at 7PM, and the main event is the concert.) But I'm still waiting to receive a confirmation from Anime Matsuri.
Please PM me if you're interested in getting a group discount!! I have a party of two right now LOL.