A song is a poem set in a musical form with an instrumental accompany the person who makes the song is named the songwriter who writes the song and the instruments for where they go, but the songwriter can write the lyrics to there song but if they don’t then the lyricist takes over that position and only focus on writing the lyrics with the instruments. some famous songwriters that a lot of people may know are Elton John, Paul McCartney, John Lennon, Simon and Garfunkel