[cal]

Originally Posted by Porter

I think that JASRAC must not be always right.

Also I checked IMAGINE credits and here is result (also not perfect info):

Yasunori Iwasaki (no arranger credit)
劇場アニメ とある魔術の禁書目録 -エンデュミオンの奇蹟- ワーナー・ブラザーズ

Keiji Inai (arranger credit)
劇場アニメ とある魔術の禁書目録（編曲） TOKYO MX/その他

Hayato Matsuo (no credit whatsoever)


I am just surprised why would be arrangers mentioned in music field.
It doesn´t have logic.

Well, music is composition and arrangement. They just decided not to distinguish the two.