Plus or Minus, for two pianos and electronics, is a 50-minute free realization of Stockhausen's open score composition of the same name from 1963. It refers to all 7 pages of the open score and utilizes two layers of activity, each of which is represented by one piano. The pianos themselves are transformed with transducer speakers placed throughout a piano's chamber so that sound is essentially "spatialized" within. Single piano tones emerge and disappear continuously between transducer speakers that use the wood inside the piano as a vibrating source. Strange resonances emerge from the music of each performer that suggests seismic, often geological forces of activity that place human expression into its proper place as one aspect of a much more complex sound world.This product is Printed on Demand and may take several weeks to fulfill. Please order from your favorite retailer.