ah I forgot to add ex MALICE MIZER's Mana in the mix D:
I really like his compositions that he did for Kanon Wakeshima who's unofficially considered as his muse xD
something even more up there on the classical creepy cool factor , think of a spookier WONDERLAND & Marionette
I don't know if Acid Black Cherry might want to compose for ayumi though cos most of yasu-san's works are quite depressing/dark D: