Tatsuya Kato (加藤達也) is a Japanese composer and arranger currently living in… Read Full Bio ↴Tatsuya Kato (加藤達也) is a Japanese composer and arranger currently living in Tokyo, Japan. He studied at the Tokyo College of Music and has been active as a composer since 2003. He is mainly known for writing the music for many TV animes such as Free!, Kämpfer, NEEDLESS, The Qwaser of Stigmata, Future Diary and Horizon on the Middle of Nowhere.