'Circle Wind' fields are recorded at Tokyo, Kanagawa, Niigata, Nagano, etc.. yet what's interesting is the time that recordings were made, each recording session was taking place between midnight and dawn, and the techniques that been used. "Feeble vibration and passage of air. It resembles Zen and meditation to capture the piece of these delicate sounds aurally." Hiroki Sasajima is the sound artist residents in Tokyo. He had started the activity of field recording around 2007. Since then, he goes to record various places in Japan actively and releases many works from labels in all over the world. For his live performances, he places field recording sound and the sound of objects in the space to give a chance to rethink about “how to listen or capture the sound” for audiences. He is interested in the beauty of the detailed and missing sound, and searches for the essence and the possibility of the sound with focussing to the characteristics of time, space and regional cultures. He weaves a seamless fabric of vibration with the pure innate vision of sound.