Hans Tammen is a composer/guitarist whose music has been described as an alien world of bizarre textures and a journey through the land of unending sonic operations. He discovers hidden sound properties through means of his modified "Endangered Guitars", interactive software programming, stereo and multichannel sound systems, and by working with the room itself.

Signal To Noise called his works "...a killer tour de force of post-everything guitar damage", All Music Guide recommended him: "...clearly one of the best experimental guitarists to come forward during the 1990s."