Known mostly as a saxophonist on the Japanese improvised music scene, Junji Hirose has also released a series of albums using self-made analog noise instruments, here using a device where balls and small objects are placed on a large, shallow, round metal plate and moved by a compressor, here in four tracks with different objects and one with no objects at all.

Three days of improvisations from the the 2019 meeting of Osaka-based musicians mizutama, Tadashi Yonago and Kayu Nakada, plus Tokyo residents Junji Hirose, Toshimaru Nakamura, Daysuke Takaoka and Yuma Takeshita in duos and trios, all using original sound-producing devices or creating sound by repurposing instruments or electronic devices in unique ways.