Kouhei Matsunaga (松永康平)was born in Osaka, Japan, a musician and drawing artist. He started drawing during childhood under the influence of his grandfather. He grew up listening to hardcore techno and hip-hop, studied architecture and has been making music since 1992. The end of his teenage, his first album Upside Down was released by Mille Plateaux (Germany) in 1998. He also releases under different aliases such as Nhk, NHKyx, Internet Magic, Koyxen and his real name.

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