What do you call the person who composes music?

Answer 1

A person who writes music is called a music composer or a songwriter. A singer-songwriter is one who writes, composes and sing their own music material.
Someone who solely writes lyrics may be called a lyricist, and someone who only writes music may be called a composer.

Answer 2

A music composer or songwriter.A singer-songwriter usually writes, composes and sings their music materials including lyrics and melody.

Answer 3

People who write music or most commonly known as "composers". A composer may be someone who writes the melody for a music, or both the words and the melody for a music.

Answer 4

A lyricist