I am slowly building up a repertoire of text based performance pieces.
The latest sampling:
a group of musicians gathers. The players are assigned notes from the harmonic series. A large prism is suspended in the air so that the stage lights shine through the prism on to the stage floor. The prism is periodically turned so that the colors shift. As the prism turns the players play their respective notes as they are revealed by prism. If the player can see his note dimly, he will play soft, if it is clear than he will play loud.
2011 John Dunlap.
I'm working toward releasing a collection of 100 of these.