Musical composition is a term that describes the composition of a piece of music. Methods of composition vary widely from peculiar composer to another, however in analysing hymn all forms — spontaneous, trained, or untrained — are built from elements comprising a musical http://www.readingkeyboardmusic.com/ piece. Bebop can be composed for repeated performance or it can be improvised: composed on the spot.

The music can be performed entirely from memory, from a written rule of musical notation, or some combination of both