part.

About part

A part in music refers to a component of a musical composition. Because there are multiple ways to separate these components, there are several contradictory senses in which the word "part" is used:any individual melody, whether vocal or instrumental, that can be abstracted as continuous and independent from other notes being performed simultaneously in polyphony. Within the music played by a single pianist, one can often identify outer parts or an inner part. On the other hand, within a choir, "outer parts" and "inner parts" would refer to music performed by different singers.