Kjetil Matheussen is a software developer and sound artist known for his contributions to the field of digital audio and music technology. His work often bridges the gap between art and technology, exploring innovative ways to create and manipulate sound. The website "http://users.notam02.no/" serves as a portal to his various projects, showcasing his expertise in software development, particularly in audio applications, and his involvement with the NOTAM (Norwegian Center for Technology in Music and the Arts). Through his projects and collaborations, Matheussen continues to influence the electronic music and sound art communities.