(Source 1st place tumblr)
Besides the Aria Special Showcase by 1st place, which they have been advertising more than 3 times now. I'm more interested on the Cevio Party music jam including other characters from other companies like Yukari, Kiritan and Maki, basically most of the synth with existing Cevio AI Banks, except Rikka.
You can read more on their tumblr post but it's all in Japanese.
