This supplement to Interactive Music Systems contains audio and program examples that document a variety of systems and the music they produce. An extensive library of Macintosh software allows the user to experiment with or adapt existing interactive systems. Some parts of the library require the presence of underlying software environments, such as SrnallTalk, LISP, or Opcode's Max Language. The program discussed most extensively on interactive music systems, Robert Rowe's Cypher, will run on any Macintosh computer.