a2At DIGINNER GALLERY, Tokyo, Japan (August 6–21 and September 3–11, 2022), Shinji Wakasa presented a2, a collaborative exhibition with artist Shingo Okazaki. Combining painting, sound, live performance, and installation, the project explored how abstract visual gestures could be translated into a spatial and acoustic structure. Wakasa developed a multichannel sound installation built from five collaborative tracks distributed across numerous speakers throughout the space.