Participation of IRCAM musicians and engineers: Curtis Abbott, Peter Eastty, Giuseppe di Giugno, Jean Kott, Jim Lawson, Tod Machover.
  • Presentation of the instrumental work, its composition and properties, intended to be developed, in sound and structure, by means of the computer.
  • Role of the computer
    • transform the sound of the instrument ;
    • extract information from the instrument to control various computer functions.
  • Description of the Machine 4 C (di Giugno)
    • its specific characteristics: how it works, and what it is capable of doing;
    • operates in real time and combines certain properties of the analog with those of the computer.
  • Concept of language (software)
    • musical objective: as clear, flexible and general as possible, these goals often being contradictory ;
    • technical objective: design of a data structure for a fast, efficient program. The main elements of a run-time program are "instruments", "scores" and "envelopes".
  • Music project and technology project.

The demands of the musical project present computer specialists with major difficulties, due to the flexibility and immediacy required: many new problems have arisen in the course of research. It seems extremely urgent to coordinate musical and scientific vocabularies from the outset, so that the two disciplines can exert a reciprocal influence on each other.