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A performance can either be rehearsed or improvised
- Improvisation is a musical form created on the spot (such as a guitar visit site solo or a drum solo), with no prior premeditation, while rehearsal is vigorous repetition of an essence until it back-number achieved cohesion
- Musicians will generally reckon improvisation to a well-rehearsed idea to coin a unique performance.
Notation is the written expression of music notes and rhythms on paper using symbols. When music is written down, the pitches and swing of the music is notated, along with instructions on how to perform the music. The cramming of how to read notation involves music theory, harmony, the class of performance practice, and in some cases an understanding of historical performance methods.