Collaboration
Collaboration takes different forms: Some composers and lyricists work closely together on the song, with each having an input into both words and tune. Usually a lyricist fills in the words to a tune already fully written out. Dorothy Fields worked in this way. Lyricists have often added words to an established tune, as Johnny Burke did with the Erroll Garner tune Misty. Some partnerships work almost totally independently, for example, Bernie Taupin writes lyrics and hands them over to Elton John, who then sets them to music, with minimum interaction between the two men.
Read more about this topic: Lyricist