"The importance of a performer to a composer is just something one sees on a dedication page, and unless one is a musicologist or you really get into it, you just don't know the involvement, to what degrees a performer could influence the kind of music the composer might play."
-Morton Feldman, 1982
In this composition system, the roles of the performer and the composer are fused though a dynamic score that contains both prewritten sections, and sections that are generated in real-time by the performer's cognitive response to the work.
Through the live analysis of the performer's cognitive reaction to the piece, the presence of particular brainwaves is mapped to a music theory that creates new written music based on musically similar associations that the brainwaves possess.
For example, gamma waves are typically associated with higher mental activity, and their presence in this composition system yields varying degrees of increasingly difficult musical material in the score.