23 speakers and more than 80 LED lights are arranged in an encompassing fashion around the stage, while a screen for video projections is mounted to the ceiling. The ad lib generated sounds of UA's singing and Uchihashi's guitar and daxophone playing are analyzed via a computer, and translated into abstract images and variously colored lights that transform the entire venue into an interactively changing space.
An originally developed interface for controlling the audio image's motion is installed at the position on stage at which Uchihashi performs. The operation screen shows the stage and marks indicating the speakers. When touching the screen with a pen, a circle forms around that point, and the performed sounds are audible at different volumes according to the circle's shading only from the speakers located within the scope of that circle. The performer can adjust the size of the circle - and thus the audio playback range - by changing the writing pressure, or draw multiple circles to produce various configurations for the motion and distribution of sound. Additionally, the device includes a looped playback function enabled by recording the pen's trajectory, and other functions that can be assigned randomly within a particular area.