Soft Machine(オープニング・テーマ)is the opening theme on Gitaroo Man.
Words/Music: Sadayoshi Okamoto
Written, Produced, Performance: COIL
Arrangement: Mitsuhiro Yokota (A&R for Imperial Records)
In the Japanese versions of the PS2 game and it's PSP port, it features a Japanese lyric version of the song, while the English versions of the games features a English lyric version.