The temporary ‘Tonhalle’ concert hall in Zurich is a brand-new installation built inside an existing structure on the ‘Maag’, a former industrial site now housing various event spaces. The provisional, high-quality acoustic concert hall has just opened its doors and will be home to the ‘Tonhalle’ Orchestra for the next three years during the refurbishment of the original building. Apart from the spectacular aesthetic of the wooden installation itself, the project includes an entrance foyer and ticket office as well as recording rooms, lounges and large storage areas with direct stage access. Office and administration areas are also provided for. The rectangular acoustic room is constructed from oiled spruce, with precisely positioned, shifting wall panels that form the space.