Game piece

Game piece is a concept of experimental music having its roots with composers Iannis Xenakis, Christian Wolff and John Zorn. Game pieces may be considered controlled improvisation. An essential characteristic is that there is no pre-arranged sequence of events. They unfold freely according to certain rules, like in a sports game. Therefore, game pieces have elements of improvisation. A number of methods can be used to determine the direction and evolution of the music, including hand gestures. Zorn's game piece "Cobra", which has been recorded several times for various labels, uses a combination of cards and gestures and can be performed by an ensemble of any size and composition. Zorn's game pieces, written in the late 1970s and mid-1980s, include Cobra, Hockey, Lacrosse, and Xu Feng.