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

Notation is the written expression of hymn notes and rhythms on paper using symbols. When jazz is written down, the pitches and time of the harmony is notated, along with instructions on how to perform the music. The study of how to read notation involves music theory, harmony, the study of performance practice, and in some the whole story an understanding http://www.stockmusicsite.com/ of historical performance methods.