What is the difference between a author and a composer?

Question

What is the difference between a author and a composer?

Answer 1

An author is someone who writes books articles etc while a composer composes music, songs etc

Answer 2

An author writes words, a composer writes music.

Answer 3

An Author writes something. and a composer makes music.

Answer 4

an author writes words  (usually in the form of a book) a composer writes music.

Answer 5

An author gets an an in front of his title because it begins with a vowel.

And one writes lit and the other music.