The twenty-third concerto deals with the sho. This ancient Japanese woodwind instrument consists of 17 bamboo pipes (two of which are silent, but included for aesthetic reasons). Even among Japanese composers, its use in classical music is rare. I have found one concerto, by Toshio Hosokawa. It is titled Cloud and Light, and is performed by Mayumi Miyata and the Munchener Kammerorchester under Alexander Liebreich (taken from an ECM CD).
