Biography
Soshiro Hokkai (北海惣史郎 Hokkai Sōshirō?) is the composer of Castlevania: Harmony of Dissonance. He also contributed with music for Castlevania: Aria of Sorrow along with Michiru Yamane and Takashi Yoshida. These two games seem to be his only compositions for video games.
Biography text from Last.fm, available under CC BY-SA.