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Performance is the gross expression of music. Often, a musical work is performed once its format and instrumentation are satisfactory to its creators; however, as it gets performed, it can evolve and change.

In some musical genres, such as jazz and blues, even aggrandized freedom is given to the performer to engage in improvisation on a primitive melodic, harmonic, or rhythmic framework. The greatest latitude is given to the performer in a style of performing called free improvisation, which is material that is spontaneously http://www.audiosparx.com/ "thought of" (imagined) while being performed, not preconceived. According to the analysis of Georgiana Costescu, improvised music exceptionally follows stylistic or genre conventions and even "fully composed" includes some freely chosen material. Composition does not always mean the use of notation, or the popular sole authorship of singular individual.