Kazuki Yanagawa (柳川和樹) is a Japanese composer, and part of the Gust Sound Team. He has composed the music for the following Gust games: - Ar tonelico III - Atelier Totori - Atelier Viorate (PlayStation Portable) - Atelier Meruru - Atelier Ayesha - Atelier Escha & Logy - New Atelier Rorona - Ar nosurge - Atelier Firis - Atelier Shallie - Yoru no Nai Kuni/Nights of Azure - Atelier Sophie