Yep also she's the main composer to it and the soundtracks are nothing to Castlevania music
I disagree wholeheartedly. There were plenty of tracks she did that had a lot of Castlevania feel to them. She just counterbalanced them with some other stuff that was jazzy and upbeat. And, she only did a majority of the work on the soundtrack. Vincent Diamante did parts too, and his were jazz-based as well.
I did a review of the soundtrack, actually.
Check it out and see what I mean. Yamane has a distinct style of music that you can still hear even in non-Castlevania games.
Honestly, Cox and Arajou need to look at what Yamane did with Lament of Innocence and Curse of Darkness, to get a good feel of how moody, ambient Castlevania music can be used effectively to be both background noise AND memorable at the same time, and how to apply that to their games for the future. (including LoS2 and Mirror)