Renewable Music on compositional anticipation versus actual result:
Part of Lucier's legerdemain — in this piece [Septet] and in others — is the move of saying that "this piece is about x" (in which X can equal acoustic interference beating or room resonances or feedback etc.) and — strategically, depending upon the composition — implicitly or explicitly putting other aspects of the piece into the "not about" box. In some cases, this is genuine sleight-of-ear stage magic: in I am sitting in a room (the one opera that will certainly survive from the 1960's) the piece is explicitly about a particular process but the composer's patter directing you in one way cannot but help the listener from also taking in elements of the piece — in particular a certain emotional drama — which he would appear to be excluding.