It seems that she is also given "special thanks" in the credits of FFXV (Royal Edition) under some other credits for Sachiko Miyano's Shangri-la Inc recording studio. Couldn't find her name in any in-game credits for FF7R though...
https://youtu.be/YKUJoL3mZ4Y?t=129
https://imgur.com/a/rhyWaBx
Makes me think she has some role in assisting the work those folks do at Shangri-La--maybe as an arrangement assistant? Copyist? Manager or instrument tech?