Our bodies are surrounded by air. Air fills space completely.

But we are not clearly conscious of the existence of air in our daily lives. We notice air's existence somehow by the actions of vibration, heat and light. Air appears as a medium in our observation. Air spreads physical vibration into a space like a spring. When sound travels through space, it repeats its reflection in space and is then overlapped. The original vibration returns reversed, similar to the action of a spring. Next, a time difference appears in the sound depending on the form of the space. Movement of this medium is greatly concerned with space and time. Moreover, it is also concerned with movement from past to present and from far to near. It is interesting to observe movement of this medium by physical vibration even without discovering its cause. We can find beautiful order there.

This collection of recorded works titled pieces of air consists of site-specific recording setups and the environmental sound of various places. All recordings were made with two identical micro omnidirectional microphones except tracks 2, 12 and 13, which were recorded with a simple handmade microphone. No processing was done on any recorded work compiled here.