ABSTRACT. Pérez et al. describe the process of composing for a new interface, the use of such a system as dictated by the concept of the piece and the effect the novel interface has on the decision making for the final compositional result. Schementi claims that ideally the virtual orchestra can be simplified down to a virtual musician who should be able to perform with or replace a musician. Behringer asserts that the interaction possibilities for musicians with electronic (digital) music instruments are still quite limited and cumbersome.