This is part of a collaborative pavilion, called a social practice "Air roof", "practiced" by an architect Alejandro Haiek and 6 artists: Junji Shiotsu, Kaori Kobayashi, Kazune Miyakawa, Miyuki Inoue, Taku Irisawa and Yoi Kawakubo.
What I proposed and created as my part was a sound installation which consists of 4 metal horns rotating and making intermittent squeaky sounds with inside speakers emitting 12 people's voice, which spoke long-sentenced-not-yet-shaped ideas and concepts, constructed and written according to all the members' thoughts by the architect, combining it with historical architectural concepts, which I thought airy, changeable and intangible, like the roof.
The concept had been written in English, but I had recorded Japanese people's voice trying to speak that sentence, not by reading it but by following a some English native speaker's vocal sound.
So, each person's voice contained different audio perceptions. Therefore, if you stood amid the installation, what you would hear, Air roof's concept, would be rotating around its meaning and an abstract sound.