The sources say it's part of the Anime fest so I wrote that. Nothing shows that it's not in any affliction with the fest so until the sources fix it or anything, I'm not fixing anything myself.
Which sources say that? Oh yes, JRR, but they're wrong and they're delivering false information. Now let me quote PN: "NOW ONCE AGAIN, CAN PLEOPLE PLEASE REFRAIN FROM POSTING TRANSLATIONS THAT HAVEN'T BEEN CHECKED BY A COMPETENT SPEAKER! DON'T USE ONLINE TRANSLATORS!!"
If you go to the official FAQ, you see this:
5.- ¿Es un evento de Animé Festival, es un cosplay donde toca Toshi?
Toshi tocará en un CONCIERTO, esto no es un evento de animé, no es un cosplay, ni tampoco tiene que ver con los eventos "Animé Festival Deluxe (27 de Sept)" o "Animé Festival XL (12, 13 y 14 de Diciembre)".
It says, that this is a CONCERT, not anything related with any Anime Festival. You believed more JRR than the official management itself...