1. A musician whose music appears in a movie’s score. Most movies have at least some original music written for the score, usually after the relevant parts of the movie have been filmed.
2. A composer (Latin com+ponere, literally “one who puts together”) is a person who creates music, either by musical notation or oral tradition, for interpretation and performance, or through direct manipulation of sonic material through electronic media. The level of distinction between composers and other musicians varies, which affects issues such as copyright and the deference given to individual interpretations of a particular piece of music.