This document addresses how musicians realize an architectural performance; one that conveys a clear mental image of the piece and brings a sense of space to the listener. I discuss the processes that lead to the realization of a multidemsional mental representation of classical music. Next I examine how the realization of this model applies to complex works of contemporary (late 20th century) repertoire, discussing in detail two works: Voicesslessness, The snow has no voices by Beat Furrer, and Serynade by Helmut Lachenmann