Aus den Werkstätten des Lichts marks the beginning of a new work phase – which overcomes instrumental sound producers by turning towards light. All details of the work – light and sound – can be found in the associated score. The work can thus be realised again and again using these notations. The Werkstätten des Lichts completely abandon traditional notation as only unconventional elements are used. At the same time, they feed on the conventions or, respectively, have emerged from them, extending notation to the visual (light) arts. The piece was preceded by an extensive research work, without which it would not have been possible to compose it. The first piece of this kind examines the waveform character of light (and sound) through the visualisation (and sonification) of diffraction as well as interference. Telescopes are used to visualise light diffraction and refraction (inspired by a demonstration video for optical phenomena), while flexible acoustic and visual barriers surround the speakers and spotlights. The visual part also incorporates the method of holographic interferometry. This interference between two images is explored by means of acoustic resonance. Additionally, contact microphones pick up the resulting vibrations.