A surprise GSJ release - the first of it's kind. Unfortunately we don't have proper arrangement credits for this one. Nothing is listed on the official page:
http://gamesymphony.jp/concert/2017/23rd.html
There was an app on the PlayStation Store a few months ago that included an arranger list (but not individual credits). From social media I have found the following:
Shunsuke Abe: Patapon
Souhei Kano: PaRappa the Rapper
Tomomichi Takeoka: Shadow of the Colossus
Ayana Tsujita: I.Q Intelligent Qube, PoPoLoCrois Monogatari, Arc the Lad
But that's all I could find.