Hijokaidan (????, lit. "emergency stairway") is a Japanese noise and free improvisation group with a revolving lineup that has ranged from two members to as many as fourteen in its early days. The group is the project of guitarist Yoshiyuki "Jojo" Hiroshige (Japanese; ????,JOJO??) its one constant member, who is head & owner of the Osaka-based Alchemy Records. Other regulars include Jojo's wife Junko and Toshiji Mikawa (also of Incapacitants).
Come back in a few weeks, it's more than likely that a debut album will be released soon.