I find the idea very interesting and, as Durnehviir said, the intense detail is very much appreciated.

My immediate idea would be for a young, by which I mean mid to late twenties, Chancellor (or even Grand Chancellor) in Erubesco whose Gift would be a Sound Manipulation (with which he can largely only use to eavesdrop on others with). He would be mild in nature but highly intellectual (and unwittingly snobbish about it) and would use this as a justification for both his role and actions (even though his heritage would of course have influenced his position more).

That is only my first thought and if it does not fit into any plan you may have I will have another, and possibly multiple, further thoughts!