Music as Literature

I personally consider music to be literature, because music is similar to the definition of literature. Literature : collective written words of a culture or imaginative / creative writing, artistic value. As for knowing the difference between A poem, song, rap, novel, etc. is that a poem and novel would be considered as literature in basically the use of words, as for a song and rap etc. would be the second definition of literature creative writing, those things are considered as artistic.