One half of the Voicecrack duo. Moslang’s long-running project is the transmutation of light into sound. The title refers changing the values in the header code of a data file. In this case, Moslang changed the headers of video stills from Swiss video artist Silvie Defraoui to create sound files. These files became the basis for the seven compositions on ‘header_change’, a work of slowly evolving textures, hacking across frequencies of light into sound.