Biography
七瀬光 (Nanase Hikaru) is a pseudonym for Masumi Ito, who has composed music for various anime series such as Angel Sanctuary, Chrono Crusade, Scrapped Princess, Noein, Gravion, Nishi no Yoko Majo: Astrea Testament, Tactical Roar, Shinkyoku Sokai Polyphonica, Venus Versus Virus, Zettai Shounen, Zone of the Enders, etc.
Her official website: http://masumi-itou.com/
Biography text from Last.fm, available under CC BY-SA.