Junji Matsuzaki is a Japanese composer and arranger and a pianist. He was born in Yokohama in 1969 and grew up in Hakuba village, Nagano Prefecture. After graduating from a college of music,he composed music for a lot of media, video and theater. In addition, he participated in the concert of various artists as a pianist and a synthesizer player. In Japan he is known as "Xymox" who has been performing a piano solo concert all around Japan. He has released six CD albums. He has been performing many concerts for children as well. He is particularly good at composing the stage music and has a high reputation as a composer of theater and puppet play. The stage that he composed has been performing throughout Japan. Now he has his own music studio "X-jam Studio" in Hanno, Saitama Prefecture, where he's working to produce music totally, including composition, arrangement and recording.