Board Thread:Questions and Answers/@comment-30976764-20170202075354/@comment-10225593-20170203052510

5th anniversary has GER songs in it, but it seems that doesn't help...

http://godeater.wikia.com/wiki/God_Eater_2_%26_God_Eater_2_Rage_Burst:_Original_Soundtrack

This is the collection for GE2RB OST. If it isn't there, the soundtrack may be uncredited. Good luck.