Lennon and McCartney, Bacharach and David, Ashford and Simpson, Goffin and King, Boyce and Hart, Rogers and Hart, Rogers and Hammerstein — many of the world's most enduring songs have come from co-writing teams. With some teams, one person writes lyrics and the other melody (like Gilbert and Sullivan). Other teams collaborate on all aspects of a song or mix and match responsibilities, depending on circumstances (like Lennon and McCartney). Every team has a different dynamic and a different process. Just as you developed a process for writing by yourself, you will have a different team process for each co-writer you work with.

Two heads are better than one; when it comes to songwriting, two heads working together can be better than three or more working separately. The right chemistry in a writing team can yield a song better than either of the writers would have come up with alone or with other co-writers. No one understands why, but few in the music business doubt that it's true. Some teams just have something special. Ideally, this is what you're looking for, a co-writer that you click with.