Just for a refresher for those that don't know. Female Voice Party consisted of 6 singers, originally: Keiko, Wakana, Kaori, Ayaka Larrison (Ito), Aya Hirano and Yuuki Yoshida. Aya dropped out after 2 or 3 shows, deciding to concentrate on voice acting.. Keiko and Ayaka left to pursue ItoKubo, Kaori and Yuuki left to join Sound Horizon. After the 9th show, all that was left was Wakana. There was one short video I saw, but lost track of which showed Wakan, Ayaka, Keiko and Kaori performing. It was like a prototype Fction Junction. Drop out Ayaka and insert Kaida.
It's sad too because Spacecraft messed up Ayaka, Aya and Yuuki... long before they messed up YK and Kalafina.