ABSTRACT
A very simple definition of artistic improvising is that it is the simultaneous conception and performance of a work (Dean, 1989; Dean, 1992). But it can be an important objective of improvisation to break prior constraints, including definitions. Improvisation is not a discrete, singular concept and necessarily changes with time. The simple definition will therefore need considerable elaboration, and this will be amongst our aims in Chapter 2. At present we need to note that the concept and relevance of improvisation can extend beyond the performing arts, in which the whole work unfolds in the presence of an audience. For improvisation may take place in private or in public. Private improvisation may result in a work which is a single "fixed" object to be viewed in a non-performance context (e.g. a painting). Or it may result in an event which is "fixed" for performance (e.g. some plays and films).
