Whoever enters the freshly renovated singing room of the school Tägelmoos in Winterthur might not only be amused about the singing children in it. The perforated MDF boards with fleece in the back provide good acoustics. In addition to the good feelings when listening, the eyes of the visitors also get an extra delicacy. Astrid Kurth Scheck, the architect of the renovation, had a special idea and wanted to reflect the forms of the picture on the wall in the ceiling. Thanks to the laser technology of Bruag, the realisation of this vision was easy. Like this, a through and through harmonic room has been created.