MAIDEN VOYAGES: A SCORE PRODUCED WITH MP1.

MP1 is a program for computer-assisted composition. The program, in use since 1973, includes both deterministic and stochastic procedures. Among the higher level restrictions that can be applied to the stochastic option are sieves and patterns. MP1 is a 'work in progress' in the sense that new features are added continuously. The program is written in Fortran and runs both on a CYBER 175 mainframe computer and on the CRAY X-MP supercomputer at the University of Illinois at Urbana-Champaign. An example is given of how some of MP1's capabilities were put to work during the realization of a piece, Maiden Voyages, for trumpet, piano, three slide projectors, and tape, written for the '25th Anniversary of the Experimental Music Studios' concert, University of Illinois, February 1984.