Part of the cultural project 'Sonic Landscape' in Itteren, Limburg was the landscape opera 'De Grensmaas vertelt'.
Okx was invited to participate and to develop a new soundsculpture based on his striking project Opus Mud in 1994. At that time an old dredging machine was the starting point. Now the river Maas, the changes and transformation of the landscape were leading. Okx composed a new piece for four brass- instruments, one female voice, glass percussion and one dredging machine.
With poems from Belgium poets Leonard Nolens and Lut de Block.