A COMPOSER is a person who writes music. They create musical compositions for a variety of purposes, such as for film, television, theatre, and video games. Composers can also write music for solo instruments, chamber ensembles, and orchestras. They often collaborate with lyricists, arrangers, and other musicians to create a complete piece of music. Composers have been around since the earliest days of music, and their work has been an integral part of many cultures throughout history.