German sculptor and sound stone maker Hannes Fessmann has been creating stone instruments for over 25 years. Alongside his father and long-time collaborator Klaus Fessmann, they have elevated the ancient art of stone instrument making to astonishing new levels of beauty, craftsmanship and sonic capability.

Central to Hannes Fessmann's work is the fundamental nature of sound, matters of perception through time and space and the synaesthetic properties of the stones themselves.