The main challenge for this project was to achieve a great acoustics within a tiny Hall. With 150 seats and just 1600 m3, our aim was to get the perfect room for the Arvo Pärt music. Using our lasts findings on 3D diffusers we created a ceiling grid that ensures a maximum diffusivity and increase the reverberance as well. The result is an ethereal space, a no boundary room and at the same times it has a very intimacy response.