"AA" is a documentary about Akira Aida (mostly known as Aquirax Aida), a japanese music critic who introduced free jazz, improvisation, and progressive rock to Japan. It's based on interviews with 12 critics and musicians who had connections with him. This is a documentary that considers the past, present and future of improvisation.
| Directing | Shinji Aoyama | Director |
| Sound | Dowser | Music |
| Editing | Kazushi Ota | Editor |
| Camera | Masaki Tamura | Camera Operator |