川井憲次
The series' music was composed by Kenji Kawai. There are four TV-series soundtracks released, the first on January 10, 2008, the second on March 26, 2008, the third on December 24, 2008, and the fourth on April 1, 2009. Kawai continues to compose the music in the movie adaptation, and the soundtrack was released on September 22, 2010.